117 results about "World health" patented technology

The invention relates to a method for treating arsenic-containing wastewater by a process of preoxidation-composite coagulation deposition-filtering, and belongs to the technical field of wastewater treatment. The method comprises the steps of adding a certain amount of an oxidizing agent in a reaction tank for preoxidation in a condition that the wastewater contains trivalent arsenic so as to transform the trivalent arsenic into pentavalent arsenic completely, while for the wastewater only contains the pentavalent arsenic, the preoxidation process is not needed; adding a certain amount of a ferrous salt water solution; controlling a molar ration of Fe to As being 5-50; adding acid or alkali to adjust a pH value being 6-8; stirring for 0.1-1 min rapidly, so that a ferric arsenate precipitate is formed, at the same time, the ferrous salt is hydrolyzed into ferrous carbonyl to promote coagulation deposition of the ferric arsenate; adding a solution of 0.1-10 mg / L organic polymer flocculant; stirring for 0.1-1 min rapidly; stirring for 5-10 min slowly, precipitating for 10-30 min, discharging sludge from the bottom, introducing supernatant into a sand filter tank, a filter film or a filter bag, filtering and discharging the effluent. Arsenic content in water after treatment is lower than that of a drinking water standard (less than 10 [mu]g / L) regulated by the world health organization. The method has low sludge production and low cost, and can be used for advanced treatment of the arsenic-containing industrial wastewater and treatment of arsenic polluted underground water and drinking water.

A system, devices and methods for training of a health care worker, real time monitoring of a health care worker and providing real time corrective guidance for procedures related to hospital infection control. Furthermore, the devices, systems and methods of the present invention are configured to provide monitoring the performance and the quality of a hand hygiene procedure and providing real time, in accordance with the World Health Organization's “5 Moments Hand Hygiene” events protocol, corrective guidance to the health care worker procedures and practice related to hospital infection control.

A monitoring system is disclosed. The system comprises a range detection system, configured for scanning a scene to provide range data arranged gridwise over a plurality of picture elements, and a data processing system configured for processing the range data to monitor hygienic activity, preferably hand hygienic activity, of an individual in the scene. Preferably, the picture elements are devoid of any color data and any grayscale data. In some embodiments of the present invention the data processing system identifies one or more of the moments for hand hygiene as defined by the World Health Organization, and monitors the hygienic activity in relation to these five moments.

The present invention discloses a multi-layer combined filtration type drinking water quality improvement system, which is a water flow channel formed by sequentially connected nine stages of filtration layers and a stage of a magnetization layer in series. According to the system of the present invention, the combination optimized drinking water quality improvement system is established sequentially through the stages 1-3 layer-by-layer purification, the stages 4-7 stacked composite mineralization, the stages 8-9 final adsorption purification, and the stage 10 strong magnetization treatment, such that the general water quality is completely and effectively purified and improved, and the obtained drinking water meets the high quality drinking water standard of the World Health Organization, and further has the functions of disease removing and life prolonging.

The invention discloses a fluorescent reagent for detecting specificity of aluminium ions based on an aggregation-induced emission principle. The fluorescent reagent is represented as sodium4-(2, 5-diphenyl-1H-pyrrole-1-yl)benzoate (TriPP-COONa). The fluorescent reagent has fluorescence enhancement specific response to the aluminium ions, has the detection limit of 1 mu M (27 mu g / L) which is lower than the aluminium ion concentration (no higher than 200 mu g / L) in drinking water stipulated by the World Health Organization, is free of the interference of other ions, such as K+, Mg2+, Ca2+, Ba2+, Ni2+, and has short response time. The fluorescence intensity of the fluorescent reagent has good linear relationship within the aluminium ion concentration range of 1 mu M to 11 mu M. According to the linear equation in the invention, the quantitive detection of the concentration of aluminium ions in the water sample can be realized conveniently and rapidly.

The invention relates to an organotin lead-free proximate matter which consists of the following matters (counted in weight portions): 100 portions of polyvinyl chloride, 1.3 to 1.5 portions of organotin stabilizing agents; 8 to 10 portions of titanium pigment, 8 to 10 portions of Haloflex, 1.3 to 1.5 portions of ACR processing modifiers; 2.0 to 29 portions of compound wax-hard calcium lubricating systems. After being counted according to a prescription, the matters are firstly processed into a mixture, and then the mixture is extruded to be the proximate matters by a double screw extruder. The proximate matter has the advantages of uniform and mild color, good impacting performance and high fillet intensity after a door and a window are assembled; besides, the output rate is high and completely accords with or exceeds the standard demands of GB / T8814-2004. The organotin stabilizing agent which is corresponding to the drinking water quality policy paper of the world health organization in particular completely abandons a lead salt stabilizing agent and thoroughly realizes free of lead.

The invention provides a microfluidic chip for instantly detecting EGFR (epidermal growth factor receptor) mutation. The microfluidic chip integrates the functions of nucleic acid extraction, LAMP (loop-mediated isothermal amplification) and instant detection. The microfluidic chip solves the problem of centrifugation step required by DNA (deoxyribonucleic acid) extraction before constant-temperature DNA amplification and the problem of thermal circulation apparatus required by DNA amplification, and conforms to the general requirements for diagnostic detection in underdeveloped regions provided by WHO (World Health Organization).

The invention belongs to the technical field of quality and safety of agricultural products and in particular relates to a model forecasting method for forecasting a rice grain heavy metal accumulation amount based on a soil heavy metal DTPA (diethylenetriamine pentaacetic acid) extractable state content. The key points comprise the following steps: extracting and measuring the heavy metal extractable state content of the soil by using 0.005MDTPA, and sampling and measuring the heavy metal content in the rice produced in the corresponding soil simultaneously, wherein the heavy metal types mainly aim at As, Cd, Cr, Cu, Pb and Ni with great risk of polluting the domestic rice at present; then analyzing data and establishing a forecasting model, forecasting the rick through the forecasting model, comparing the forecasted data with a standard specified by WHO (World Health Organization) or a pollution-free rice standard specified by the nation, and forecasting the heavy metal pollution rick of the rice planted in the region. The invention aims at providing a rich grain heavy metal pollution rick forecasting method which has an environmental-friendly effect, is convenient to operate and high in reliability, so that a basis is provided for selecting production bases of safe and high-quality rice and taking a corresponding complete set of techniques in production in advance.

The invention provides a method for producing detoxified almond oil, which uses a bitter almond as a raw material. The method comprises: a shell breaking step, in which, a shell of a bitter almond seed is broken, and a bitter almond is separated; a cold pressing step, in which, the bitter almond is subjected to cold pressing under a condition of room temperature to obtain bitter almond fatty oil and degreased bitter almond; and an extracting step, in which, the bitter almond fatty oil is put into a vessel with 4 to 8 times of water by weight to be mixed into paste, and oil phase and water phase are centrifugalized; and the separated oil phase is extracted for 2 to 5 times by 4 to 8 times of water by weight, and the finally separated oil phase is the detoxified almond oil. In the detoxified almond oil produced by the method for producing the detoxified almond oil, residual cyanide is below 0.2 mg / kg. Compared with International Standards for Drinking Water of the World Health Organization in 1963, which suggests that the maximum allowable concentration of the cyanide of the drinking water based on health is 0.2 mg / kg, the detoxified almond oil produced by the method reaches the standard regulated by the International Standards for Drinking water, and is healthy and natural almond fatty oil.

The invention discloses a nitrogen-doped mesoporous carbon modified cadmium and lead electrochemical sensor and a manufacturing method thereof. The electrochemical sensor consists of a working electrode modified by nitrogen-doped mesoporous carbon-bismuth film-Nafion, an Ag / AgCl reference electrode, a Pt wire counter electrode, an electrolytic tank and an electrochemical working station; the detection ranges of the sensor to cadmium and lead are both 4 to 130mumgL<-1>; the detection limits are lower than a standard drinking water value given by WHO (World Health Organization) by 10 and 25 times; meanwhile, high reproducibility, stability and interference resistance are realized; in detection of cadmium and lead content in tap water, the sensor shows high sensitivity and accuracy. The sensor can simultaneously detect the content of cadmium ions and lead ions accurately and rapidly on the spot, so that the sensor has a good practical application prospect.

The invention relates to an electronic sphygmomanometer with blood pressure data analysis and management functions. The electronic sphygmomanometer comprises a blood pressure measurement module, an operation module, a data storage module, a computation module and a display module. The electronic sphygmomanometer can be used for simultaneously displaying multiple values of the sphygmomanometer during a day, or simultaneously displaying a blood pressure chart for a plurality of days, and also can be used for forming a WHO (World Health Organization) blood classification chart, so that a user can more intuitively know the variation of blood pressure and can effectively carry out diet control and estimate efficacies of drugs when considering variability of blood pressure, thus relieving the obedience of the user on treatment; moreover, the electronic sphygmomanometer has an entertainment function of a digital photo frame and can play light music while measuring the blood pressure, so that the user can feel more relaxed when the user takes the blood pressure; and the electronic sphygmomanometer can be taken as a digital photo frame when not being used for measuring the blood pressure.

As per the World Health organization (WHO) requirement, the water for drinking purposes should be 100% virus free. This invention reports a polymer impregnated porous substrate membrane and method for the preparation of said membrane for capturing viruses from water. The water filtered through the membrane prepared by the process of the present invention has been tested to be virus free and fully potable based on the tests carried out at the Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India and Sriram Institute for Industrial Research (an ISO 9001 R&D Organization), New Delhi, India. The invention will be of immense use especially for the developing countries and third world countries which are subjected to the problem of unsafe drinking water. This invention is useful also for the developed countries for use in water treatment plants due to highly industrialized nature and existence of a variety of manufacturing units like chemicals and fertilizers.

A core material of the current vacuum insulating plate is flame cotton or glass cotton, the fiber diameter is wide in distribution range, the diameter of fibers is less than 5 mum, the requirement of the world health organization cannot be met, and the fibers cannot be exported to foreign countries, such as European unions. A chopped glass fiber core material harmless to a human body and a preparation method thereof which are provided by the invention are characterized in that the core material consists of 10 to 100 layers of chopped glass fiber thin felts, wherein the diameter of the chopped glass fiber is 6 to 20 mum, the length of the chopped glass fiber is 5 to 30mm, and the thickness of each layer of glass fiber thin felt is 0.5 to 2mm. The core material has the beneficial effects that the continuous long glass fiber is the fiber with infinite length which is formed by mechanically stretching a platinum alloy plate, so that the fiber has the characteristic of uniform diameter. After the continuous long glass fiber of which the diameter is more than 6 mum is chopped, the diameter of all the chopped glass fibers can be ensured to be more than 6 mum, and the requirement of the world health organization is met.

World Health Organization thinks that the rise in triglyceride is a major cause for occurrence of atherosclerosis. The U.S. classical anti-arteriosclerosis drug—atromid-s can reduce TG and VLDL remarkably and inhibit the synthesis and release of TG the effects of the five-plant compound hypolipemic products are better than that of atromid-s. They are made under delicate and strictly controlled conditions by absorbing, eluting, isolating and purifying the five-plant components with supercritical CO2 extraction and WLD resin absorption techniques and quantitative analysis by fingerprinting through high performance liquid chromatography to ensure the uniformity and stability of product quality. The results of experiments on pharmacological activity show the compound products have the pharmacological action to inhibit the rise in serum cholesterol in rabbit, enhance LCAT activity and reduce the content of serum cholesterol and triglyceride, clinically They can be used in the treatment of atherosclerosis and obesity.

The invention relates to a method for keeping pickled Chinese cabbage, pickled vegetables and wild vegetables at room temperature, and is characterized in that the method comprises the following steps: soaking pickled Chinese cabbage, pickled vegetables and desalted wild vegetables respectively in a fresh-keeping liquid for 1-5 minutes, weighing and vacuum-bagging. The fresh-keeping liquid has a pH value of 3.0-4.0 and is composed of 1000-1500 ml of water, 1-1.5 g of sorbic acid, 2-4 g of sodium glutamate, 2.5-3.5 g of citric acid, 0.4-1.0 g of sodium metabisulfite, and 3.6-4.6 g of sodium benzoate. The raw materials of the fresh-keeping liquid are food additives permitted by World Health Organization (WHO) and National Ministry of Health. The method in the invention has the advantages that: with the fresh-keeping method, the pickled Chinese cabbage, pickled vegetables and wild vegetables have no toxicity and adverse effect and have good taste and freshness.

The invention relates to the field of a nano probe design application, and discloses a mercury ion fluorescence detection nano probe preparation and an application thereof. By an optimization design of the nanoparticles, by adjusting the mol ratio of an Au and Fe3O4 precursor, the size of the synthesized nano probe can be regulated and controlled, an appropriate base sequence is used for Hg<2+>, a T-Hg<2+>-T structure is established; through reasonable design of the nano probe, the nano probe has single detection capability, the detection lower limit is 0.46 nM, which is far lower than the highest allowed concentration of 30 nM of Hg<2+> in drinking water prescribed by world health organization, the used nano probe passes through a cysteine solution, and the T-Hg<2+>-T structure is dissociated so that the nano probe is regenerated and reused. The probe can be used for detecting Hg<2+> in the samples such as environment, food and human body fluid.

The invention relates to a vegetable protein drink made from lactic acid bacteria of Chinese wam juice and a preparation method thereof, in particular to a preparation method for health care and diet therapy drink for high blood pressure, high blood sugar, and high blood fat. The drink adopts the technical scheme that the drink is prepared by using the following raw materials by weight ratio in corresponding steps: 4-5 portions of Chinese wam, 4-5 portions of soybean, 3-5 portions of lactic acid bacteria, 8 portions of white granulated sugar, 0.5-0.8 portion of arabinose, 0.5-0.6 portion of composite stabilizer, 0.2-0.25 portion of composite acidifier and a suitable amount of purified water. The drink has the beneficial effects that Chinese wam is rich in zinc which has a therapeutic action to diabetes and chronic renal failure; Chinese wam is rich in cobalt and copper which can prevent atherosclerosis and can reduce blood fat and cholesterin; Chinese wam is rich in a great amount of manganese which is approved as a necessary element beneficial to the angiocarpy of the elderly by World Health Organization and has anti-ageing and life-prolonging effects; Chinese wam contains a great amount of starch and cellulose and belongs to coarse grain food which can promote digestion of bodies.

The invention discloses a method for removing fluorions from mineral water by using food grade alkaline magnesium carbonate. In the method, fluorine is removed from mineral water by taking food grade alkaline magnesium carbonate as a fluorine removing agent. The method comprises the following operating steps of: uniformly mixing food grade alkaline magnesium carbonate powder with mineral water with the fluorine content of higher than the national standard in the mass ratio of 1:(62-1):125 by continuously stirring; keeping the temperature of the mineral water between 20 DEG C and 60 DEG C; continuously stirring for 2-8 hours; standing for 2-24 hours; and removing insoluble substances from water by filtering to obtain drinking mineral water of which the pH is 7.5, the fluorine content is accordant with the national standard, beneficial elements are effectively kept and Mg residual is lower than the value of 150 mg / L suggested by the world health organization (WHO).

The invention relates to functional type rice oil (rice bran oil and rice oil for short), and belongs to the field of edible oil and fat. The rice oil is edible oil which is recommended by World Health Organization and World Food and Agricultural Organization and appointed in the nutritional lunch of Japanese school students. In the rice oil, the content of monounsaturated fatty acids is high, and besides linoleic acid, polyunsaturated fatty acids also contain linolenic acid and arachidonic acid and are significant fatty acids which are not contained in other edible oils. However, the fatty acids are easy to oxidize, and have the negative effect on the health of human bodies. In the functional type rice oil, the rice oil and nutrients such as natural lycopene and the like are fused, so that the oxidation resistance of the rice oil is enhanced, the fatty acids are prevented from being oxidized, and the damage caused by oxidization is prevented. In addition, the functional type rice oil also has the health-care functions of enhancing immunity, preventing and resisting cancers, protecting cardiovascular and cerebrovascular blood vessels, protecting skin and the like. Dishes are cooked by the functional type rice oil, various original nutritional ingredients and faint scent mouthfeel of the rice oil are kept, and the rice oil also has the health-care functions and is the optimal selection of improving life quality.

The invention relates to a health food for preventing and treating diabetes. The food is prepared from the following raw materials (by weight): 30 g of mulberry leaf, 20 g of sea-buckthorn, 25 g of rhizoma phragmitis, 15 g of polygonatum rhizome, 20 g of root of kudzu vine, 15 g of radix astragali, 15 g of radix rehmanniae, 15 g of radix rehmanniae preparata, 12 g of anemarrhena, 20 g of balsam pear, 15 g of poria cocos, 15 g of adenophora root, 15 g of radix ophiopogonis, 10 g of Chinese magnoliavine, 15 g of cassia seed, 10 g of large-fruited Chinese hawthorn, 20 g of ganoderma lucidum, 18 g of coix seeds, 10 g of the fruit of Chinese wolfberry and 20 g of Chinese yam. All the components of the food are extracted from medicinal and edible plants. The invention accords with the green and safety medication direction advocated by the World Health Organization (WHO), and many insufficiencies in aspects of reducing blood glucose, stabilizing blood sugar and controlling complication in both traditional Chinese medicine and Western medicine are made up.

Diabetes consists of a worldwide public health concern that leads to high levels of morbidity and premature mortality and affects millions of people in countries of any level of development. It is estimated that there are more than 150 million people with diabetes in the world, wherein projections from the World Health Organization (WHO) for 2025 such amount may get to 300 million cases.The present invention refers to a process for obtaining an extract rich in rosmarinic acid (RA) from the plant Origanum vulgare and its use as a possible oral hypoglycemic agent for the treatment of diabetes.

The invention discloses a 23-ingredient ultramicro egg, milk, fruit, vegetable, and cereal powder with a reasonable formula, energy and amino acid composition. The powder is composed of the following components in parts by weight: 3.5 parts of egg powder, 6.2 parts of whole milk powder, 3 parts of chicken liver, 5 parts of fresh oyster, 4.4 parts of white hyacinth bean, 5 parts of soybean meal, 5 parts of soybean flour, 10 parts of black rice, 4.8 parts of millet, 4.8 parts of buckwheat, 3.5 parts of seed of Job's tears, 3.4 parts of wheat bran, 3.5 parts of rice bran, 11.6 parts of sweet potato sheet, 5 parts of konjak fine flour, 4.5 parts of dry red date, 10.3 parts of chestnut kernel, 8 parts of lotus root flour, 24.2 parts of clover, 4.5 parts of rapeseed oil, 2 parts of licorice, 2.8 parts of fructo-oligosaccharide, and 0.2 part of stevia sugar. The powder can simultaneously meet the suggested proper value of diet energy and amino acid composition of World Health Organization (WHO) and the reasonable suggested value of food composition of "Chinese Resident Dietary Guideline 2007". Moreover, medicine-food homology materials are adopted as the raw materials, probiotics fructo-oligosaccharide is also added, so the powder contains more healthy factors.

The invention relates to a safe mosquito-repellent incense and a using method and a mosquito-repellent method thereof and belongs to the technical field of mosquito-repellent incense. A mosquito is an injurious insect in World Health Organization and is one of the propagation media of infectious diseases. Researches prove that more than 80 diseases are propagated by mosquitoes. At present, mosquito-repellent products sold in the market mainly have the following problems that: a disc mosquito-repellent product produces open fire and smoke during mosquito repelling, possible discomfort is brought to a user, even a fire hazard is caused; an electric heating mosquito-repellent product needs to be electrified during use, the using site is limited, and an electric fire hazard is caused; and a chemical spray mosquito-repellent product is short in drug efficacy duration and needs to be used frequently, so a certain possible harm is brought to a human body. According to the safe mosquito-repellent incense disclosed by the invention, a mosquito-repellent drug is packaged in a packaging shell, the packaging shell is opened during use, so that the mosquito-repellent drug is exposed in air, and the mosquito-repellent incense can automatically give heat and achieve the drug efficacy so as to achieve the mosquito-repellent effect. The safe mosquito-repellent incense is convenient to use and is not limited by using site conditions.

The invention provides a vegetarian meal replacement composed of 18 precious food materials preferably selected from the group consisting of refined konjak powder, a lotus leaf extract, white kidney beans, wheat germs, oats, black sesame, chia seeds, walnuts, pine nuts, wolfberries, sea buckthorn, Cordyceps militaris, pine pollen, roses, spiral seaweed, Hericium erinaceus, kudzuvine roots, highland barley and the like in accordance with the concepts of balanced nutrition and scientific weight loss. The vegetarian meal replacement provided by the invention helps to control intake of excessive calories for the human body, realizes balanced supply of proteins, amino acids, unsaturated fatty acids, carbohydrates, dietary fibers, vitamins, minerals and trace elements which are needed for health, and accords with the concept of healthy weight loss recommended by the World Health Organization. The vegetarian meal replacement food provided by the invention has good functions of losing weight,maintaining health and keeping fitness, and is convenient to eat, applicable to all kinds of populations and used for replacing diets for breakfast and supper.

The invention relates to development of a compound repellent mosquito repellent wet tissue. The compound repellent mosquito repellent wet tissue belongs to daily-use chemical industry individual health protective articles, and is mainly suitable for repelling of mosquitos, midges, blackflies and other blood sucking insects for people exercising, relaxing, working, touring, being on duty outdoors and the like. The compound repellent mosquito repellent wet tissue adopts repellent effective constituents recommended by the world health organization, chooses deet or 3-(N-normal-butylacetamido)-ethyl propionate to compound with cyclohexanemethanol, and then is mixed with suitable surface active agent, stabilizer, deionized water and the like. Non-woven fabrics are quantificationally soaked to form the wet tissue which can repel the mosquitos, the midges blackflies and other blood sucking insects sustainedly, and pesticide effect reaches the national A level standard. When the wet tissue is used, the wet tissue can be wiped on the clothes, the shoes and the hats or the exposed portions of the limbs of a user, and can be used for repeatedly embrocating clothes, the shoes and the hats or the exposed portions of the limbs according to environmental conditions, mosquito densities or individual physique status, the mosquitoes and the like can be repelled fast and sustainedly to be prevented from harassing and biting people through odors.

The invention discloses a traditional Chinese medicinal effervescent tablet with effects of killing dermatophytosis bacteria and fungi and nourishing. The tablet comprises the following components in percentage by weight: 1-16 percent of folium artemisiae argyi, 1-13 percent of safflower carthamus, 1-5 percent of dried ginger, 1-4 percent of pepper, 1-7 percent of radix sophorae flavescentis, 1-4 percent of bactericide, 1-21 percent of solid acid, 1-4 percent of effervescing agent, 1-20 percent of release agent and 1-5 percent of adhesive. The traditional Chinese medicinal effervescent tablet has the following technical effects: about 4 liters of warm water at 40 DEG C is filled in a foot-bath basin, the traditional Chinese medicinal effervescent tablet is put into the water, and feet are soaked in the water for 15-20 minutes, naturally aired and soaked continuously for 3 days so as to achieve the effects of killing dermatophytosis bacteria and fungi and nourishing. Chlorine dioxide is an A1 grade broad-spectrum, safe and effective disinfectant recommended by the World Health Organization (WHO) and the Food and Agriculture Organization (FAO), does not have toxic or side effect on a human body in the using process, does not stimulate human skin, and has double effects of treating dermatophytosis and nourishing by matching with the traditional Chinese medicinal effervescent tablet.

The invention discloses a kit for detecting human cytomegalovirus. The kit comprises specific PCR primers and a fluorescent probe for detecting human cytomegalovirus DNAs, specific primers and a probefor detecting a DNA internal standard, a PCR reaction buffer, a mixed enzyme liquid, theDNA internal standard, a negative control, a strongly positive control, a weakly positive control and quantitative references A, B, C and D; wherein the sequences of the primers and the probes are as shown in SEQ ID No. 1-6. The kit of the invention has the advantages of convenient and quick detection, capacity of quantitatively detecting human cytomegalovirus within 20 min, high sensitivity, the lowest detection limit of 34.5 IU / ml, and good specificity. According to the invention, a pair of primers are designed according to the internal repetitive sequence [mu]l65, so the primers have no cross-interference with other pathogens and have high specificity. The kit of the invention can be traced to the World Health Organization (WHO) standard unit IU / mL; quantitative results have traceability; and the kit has high reference value for clinical diagnosis of diseases related to human cytomegalovirus andis suitable for promotion and application.

The invention discloses a heavy metal ion detection and adsorption integration polyacrylamide microgel, and belongs to the field of functional polymer materials. The microgel is prepared through inverse emulsion polymerization with acrylamide as a gelling substance, carbon quantum dots (CDs) as a detection probe and 2-acrylamide-2-methylpropanesulfonic acid (AMPS) as an adsorbent. The mercury heavy metal ion detection limit of the obtained microgel is 2.3 nM, the copper heavy metal ion detection limit is 1.3 [mu]M, the iron heavy metal ion detection limit is 3.2 [mu]M, all above detection limits are lower than highest discharge standard concentrations of mercury, copper and iron heavy metal ions in drinking water in World Health Organization, and the respective adsorption quantity of the three ions is about 100 mg / g. The microgel can be washed after adsorbing the heavy metal ions in order to efficiently recover the heavy metal ions, and the microgel can be repeatedly used for detectingand adsorbing the heavy metal ions. The microgel has the advantages of no special devices during preparation, high polymerization rate, easiness in heat dissipation, easiness in industrial enforcement, and small increase of the cost.

The invention belongs to the technical field of biological prevention and control of sanitary insect pests, and mainly discloses a material and a method for preventing and controlling larvae of mosquitoes which are the leader of 'four pests'. The invention discloses a novel strain Bt S2160-1 of Bacillus thuringiensis, Bt for killing mosquito larvae, wherein the preservation number of the novel strain is CGMCC No.13274. The strain Bt S2160-1 has very high insecticidal activity upon larvae of culex fatigans and aedes albopictus, and compared with a Bt mosquito strain Bti recommended by WHO (World Health Organization), the Bt S2160-1 has relatively high activity upon larvae of aedes albopictus. The Bacillus thuringiensis Bt S2160-1 disclosed by the invention can be made into an insecticide for large-scale prevention and control on larva populations of culex fatigans and aedes albopictus. Therefore, the strain can be powerful supplement as a mosquito control microbial agent in addition to Bti, or even can be used as a substitution of Bti for controlling populations of aedes albopictus, and the risk that mosquitoes have resistance to a Bti crystal protein which is used for a long time to control mosquito populations can be reduced.

The invention relates to an edible oil for specially supplementing alpha-linolenic acid nutrient, which aims to solve the problem that the diet of Chinese people commonly lacks alpha-linolenic acid, and the daily intake is about 0.4 g which is less than half of the daily intake 1 g recommended by the World Health Organization. Since the nutritional edible oil containing the high activity component alpha-linolenic acid (the content is up to 53%), which is produced by the technology of our company, our company applies the patent of the invention to protect the invention. The edible oil of the invention is characterized in that perilla seed and linseed are compounded in the proportion of 1:1, and the edible oil contains 0.5 per mill of vitamin E. The process of the edible oil of the invention is that the pressing-extraction content at 40-60 DEG C is more than that of 50% edible oil; the net content of the active ingredient alpha-linolenic acid in 1000g of the edible oil is 500-600g; and the physiochemical demand is to protect the effective components to be stable and unoxidized. The edible oil is used for specially supplementing alpha-linolenic acid which is a necessary nutrient for human bodies.