569 results about "Sodium iodide" patented technology

A compact includes a mixture of a solid binder and at least one nanopowder phosphor chosen from yttrium oxide, yttrium tantalate, barium fluoride, cesium fluoride, bismuth germanate, zinc gallate, calcium magnesium pyrosilicate, calcium molybdate, calcium chlorovanadate, barium titanium pyrophosphate, a metal tungstate, a cerium doped nanophosphor, a bismuth doped nanophosphor, a lead doped nanophosphor, a thallium doped sodium iodide, a doped cesium iodide, a rare earth doped pyrosilicate, or a lanthanide halide. The compact can be used in a radiation detector for detecting ionizing radiation.

The invention relates to a BiOI-graphene visible light catalyst and a preparation method thereof, belonging to the technical field of inorganic material synthesis and photocatalysis. BiOI and graphene are in the shape of a slice, and the graphene is 1.0%-3.0% by weight. The preparation method of the BiOI-graphene visible light catalyst comprises the following steps of: firstly ultrasonically dispersing graphite oxides into ethanol; then stirring, and adding a certain amount of sodium iodide or potassium iodide water solutions and bismuth nitrate glacial acetic acid solutions at the same time; transferring suspending liquid into a high-pressure reaction kettle with a polytetrafluoroethylene liner, and carrying out crystallization reaction at 120-150 DEG C for 6-12 hours; filtering, washing and drying obtain solid products so as to finally obtain the BiOI-graphene compound light catalyst. The preparation method has environment friendliness and simple process; and the prepared BiOI-graphene visible light catalyst has very high visible light catalytic activity and potential application value in a control technology decomposing organic pollutants by utilizing solar photocatalysis.

The present invention relates to an improved process for the preparation of Cefditoren of formula (I), the said process comprising the steps of: i) converting the compound of formula (II) to a compound of the formula (III) using TPP and sodium iodide in the presence of THF, water, and base; ii) reacting the compound of formula (III) with 4-methyl-5-formyl-thiazole to produce a compound of formula (IV); iii) deesterifying the compound of the formula (IV) to yield compound of formula (V); iv) converting the compound of formula (V) to compound of formula (VI) in the presence of a base and solvent; v) converting the compound of formula (VI) into compound of formula (VII) by enzymatic hydrolysis; and vi) reacting compound of formula (VII) with compound of formula (VIII) in the presence of solvent and base to produce compound of formula (I).

A single reagent system and a method to detect and measure oxidizing adulterants in bodily fluid being screened for drugs of abuse are disclosed. The system comprising a strip containing 0.05 to 0.2 micromole/25 sq. mm. of a benzidine derivative and is used to detect sodium hypochlorite (bleach), chlorine, hydrogen peroxide, sodium bromide, sodium iodide, sodium nitrite, and pyridinium chlorochromate adulterants in urine, sweat, saliva, blood or other bodily fluids during screening for drugs of abuse.

The invention provides a plant nutrient solution which consists of the following components: potassium nitrate, urea, ammonium nitrate, magnesium sulphate, ammonium dihydrogen phosphate, calcium nitrate, manganese sulfate, zinc sulfate, ferric citrate, boric acid, sodium molybdate, sodium iodide, folic acid, asparagine and deionized water. According to the invention, the plant nutrient solution is comprehensive in nutrition, has no poisonous substance, cannot pollute the environment after being used, cannot cause harm to human body, and is free from undesirable odor. Through the adoption of the plant nutrient solution to cultivate foliage plants such as monstera deliciosa and rohdea japonica without soil, the leaf color is dark green, the growth is vigorous, death is hard, and compared with the conventional plant nutrient solution in the market, the growth rate is increased by 20%.

The invention provides a gold nanoparticle triangular plate preparing method and a method for preparing gold nanoparticle discs and gold nanoparticle hexagonal pieces on the basis of the gold nanoparticle triangular plate preparing method, relates to the technical field of gold nanoparticle preparing, and aims at providing the method which is easy and convenient to operate, high in repeatability and efficiency and is used for preparing gold nanoparticle triangular plates, gold nanoparticle discs and gold nanoparticle hexagonal pieces. The gold nanoparticle triangular plate preparing method includes the steps of preparing a gold nanoparticle seed solution through a sodium citrate aqueous solution, a tetrachloroauric acid aqueous solution and a sodium borohydride aqueous solution, preparing a gold nanoparticle triangular plate solution through the preapraed seed solution, a cetyl trimethyl ammonium bromide aqueous solution, a tetrachloroauric acid aqueous solution, a potassium iodide or sodium iodide aqueous solution, a sodium hydroxide aqueous solution and a ascorbic acid aqueous solution, and obtaining gold nanoparticle triangular plates after the liquid supermatant is abandoned. The method is easy and convenient to operate and high in repeatability and controllability, the prepared gold nanoparticle plates are unified in size, gold nanoparticle plates of different types and sizes can be synthesized, and the purity reaches 95% or higher.

The present invention provides for a composition comprising a crystal composition or inorganic scintillator comprising a thallium doped sodium iodide, cesium iodide, or lithium iodide scintillator useful for detecting nuclear material.

The present invention relates to the use of gene therapy to introduce an iodine symporter into cell to increase iodine uptake therein. This approach has particular utility in the treatment of cancers that incapable of removing iodine. In addition, strategies are provided for reducing the export of sodium from cells to improve the efficacy of the iodine symporter gene therapy.

Acid-soluble cupric acetate may used in conjunction with potassium iodide to generate cuprous iodide (CuI) as an acid corrosion inhibition aid. A suitable corrosion inhibitor together with the aid protects steel surfaces in an acid environment, for instance, while acid fracturing or matrix acidizing subterranean formations. Cupric acetate monohydrate may be used with an alkali metal iodide salt such as potassium iodide or sodium iodide to generate cuprous iodide in situ in aqueous acid solutions. Use of cupric acetate provides a somewhat delayed reaction rate with potassium iodide to generate the desired product, cuprous iodide, which has very low solubility in acid systems. The method includes delayed and in situ production of cuprous iodide for enhancing performance of commercially available corrosion inhibitors, commonly referred to as intensifying the effect of the corrosion inhibitor (corrosion inhibitor intensifier or simply an intensifier).

The invention relates to a method for preparing baking-free bricks from waste aluminum ash residues. The method has the advantages that the production cost of the baking-free bricks is low, the energy consumption is low, the manufacturing time is short, and the environmental pollution caused by waste aluminum ash residues is reduced. In addition, the baking-free brick prepared by the method disclosed by the invention is high in compressive strength. The raw materials used in the method for preparing the baking-free bricks from the waste aluminum ash residues are waste aluminum ash residues, water-quenched slag, silica fume powder, anhydrous calcium sulfate, silicate cement, slaked lime, sodium chloride, sodium iodide, Al (13) polymer, triethanolamine and water. The method for preparing the baking-free bricks from waste aluminum ash residues comprises the following steps: (1) preparing crushed mixture; (2) preparing a waste aluminum ash residue raw material mixture; (3) preparing a baking-free brick mixture; (4) forming a baking-free brick; and (5) curing the baking-free brick.

The invention discloses a nutrient solution for a tree. The nutrient solution is characterized in that every 1,000 ml of the nutrient solution contains 1,000 to 1,200 mg of potassium nitrate, 2,100 to 2,250 mg of urea, 1,900 to 2,050 mg of ammonium nitrate, 140 to 160 mg of magnesium sulfate, 1,200 to 1,230 mg of ammonium dihydrogen phosphate, 1,360 to 1,380 mg of calcium nitrate, 1,190 to 1,210 mg of monopotassium phosphate, 160 to 180 mg of manganese sulfate, 10 to 12 mg of zinc sulfate, 12 to 14 mg of ferric citrate, 160 to 180 mg of vitamin A, 120 to 140 mg of vitamin C, 80 to 120 mg of vitamin B6, 1 to 2 mg of boric acid, 0.3 to 0.4 mg of sodium molybdate, 0.15 to 0.31 mg of sodium iodide, 0.1 to 0.2 mg of folic acid, 1.5 to 1.7 mg of asparaginate, 1 to 2 mg of fulvic acid, 0.5 to 0.7 mg of indolebutyric acid, 0.8 to 1.2 mg of gibberellins and the balance of water. The nutrient solution for the tree has the beneficial effects that the nutrient solution does not contain a harmful substance, and can supply nutrients for growth to plants subjected to soilless culture.

the invention provides a composition having laser engraving properties, comprising a host material and a laser enhancing additive. The host material comprises a material, such as a polymer, modified by a first process, whereby the host material as modified by the first process has increased thermal conductivity as compared to the host material before the first process. The laser enhancing additive comprises a first quantity of at least one of copper potassium iodide (CuKI₃), Copper Iodide (CuI), potassium iodide (KI), sodium iodide (NaI), and aluminum iodide (AlI), and a second quantity of at least one substance selected from the group consisting of zinc sulfide (ZnS), barium sulfide (BaS), alkyl sulfonate, and thioester.

At least one of the following compounds is applied as a re-wet solution to media: potassium iodide, sodium iodide, sodium thiosulfate, potassium thiosulfate, and sodium thiocyanate. The addition of at least one of these compounds to the re-wet solution can improve light fastness on the order of eight to thirteen times or more on porous glossy media. These additives are particularly effective with water-soluble dyes, including dyes such as Reactive Black 31 (Pacified) (RB31), Direct Blue 199 (DB199), Magenta 377 (M377), and Direct Yellow 132 (DY132).

The innveiton discloses an electrochemical preparation method for 3-selenium aryl indole compounds, and belongs to the technical field of electrochemical organic synthesis. The preparation method comprises the following steps of: sequentially adding electrolyte, sodium iodide, indole compounds, diselenium aromatic ether compounds and an electrolytic solvent into an electrolytic tank without a diaphragm; inserting an anode and a cathode; stirring and electrifying, reacting under a constant-current condition; and after reaction is completed, carrying out organic extraction on an electrolyte solution by use of an organic solvent, and separating and extracting to obtain the 3-selenium aryl indole compounds. According to the electrochemical preparation method disclosed by the invention, an anode electrode is used as a platinum electrode or a net-shaped glass-state carbon electrode (RVC electrode), the cathode is a nickel net or a net-shaped glass-state carbon electrode (RVC electrode) or platinum, the yield is high, selectivity is good, and a metal catalyst does not need to be additionally added, so that a catalyst which is poisonous, dear and complex to prepare is effectively prevented from being used, a reaction system is simple and effective, and the electrochemical preparation method is environmentally friendly. The method disclosed by invention is operated under normal pressure at a normal temperature, and is simple and safe.

The invention relates to a portable multifunctional digital radiation inspection instrument which comprises a sodium iodide probe, a lanthanum bromide probe, a Geiger counter tube, a plastic scintillator probe, a BF3 probe, a multi-channel analyzer, a PDA and a computer host. The sodium iodide probe, the lanthanum bromide probe, the Geiger counter tube, the plastic scintillator probe and the BF3 probe are respectively connected to the multi-channel analyzer. The multi-channel analyzer is connected to the PDA and the computer host. The portable multifunctional digital radiation inspection instrument has the advantages of being simple in structure, small in size, convenient to carry, accurate and comprehensive in detection result and the like.

The invention relates to a method for preparing antibacterial agent achieving the antibacterial effect on textile finishing fabric. The method comprises the following steps: mixing silane and tertiary amine by the ratio of 1:1.5-3 in a 100mL 4-neck flask equipped with a thermometer, a reflux condensation tube and a stirrer; adding 0.15%-3% sodium iodide as a catalyst and 1.2%-2.5% antioxidant as well as organic solvent at the same time to the mixture; feeding in protective nitrogen; controlling the temperature of the reaction system within 65 to 80 DEG C; stirring and reacting; and cooling and discharging after the reaction to obtain the light yellow liquid antibacterial finishing agent, wherein the reaction equation is shown as below.

The invention discloses a high-sensitivity wide-range X-gamma ambient dose equivalent rate monitor probe, which consists of a front cover of the probe, a shielding shell, thallium-doped sodium iodide scintillator, a first optical conductor, a plastic scintillator, a silver-doped zinc sulfide scintillator, a second optical conductor, a photomultiplier and a preamplifier circuit which are connected in turn. By the high sensitivity of the plastic scintillator and the energy compensation of the thallium-doped sodium iodide scintillator and the silver-doped zinc sulfide scintillator, the high-sensitivity wide-range X-gamma ambient dose equivalent rate monitor probe has the advantages of capacity of detecting the ambient dose equivalent rate of X-gamma rays under a wide-range high-dose mixed gamma radiation field, good energy response, high sensitivity and good angular response.

A 4'-demethylepipodophyllotoxin derivative IIIa-n is prepared by taking etoposide as raw material, reacting with sodium iodide to generate 4-bit iodine substitute and obtain intermediate II, agitating while adding into barium carbonate, regulating reactive system pH 7-8, adding into amino-compound, and reacting to room temperature for 8-10 hrs to obtain final product. It's simple and efficient, it can avoid 4-bit surface isomerization and 4-bit demethylation, it has strong inhibiting function of multiple tumor cell strain and non-toxic.

The invention relates to the field of radiation measurement and provides an on-line type energy spectrum analysis anti-coincidence measurement detector. The detector comprises a sodium iodide scintillator for recording a gamma ray, a photomultiplier for converting an optical signal of the sodium iodide scintillator into a weak pulse signal, a plastic scintillator for deducting Compton flashing of the sodium iodide scintillator, a silicon photomultiplier for converting an optical signal of the plastic scintillator into a weak pulse signal, a lead shielding body for shielding an environment radiation band alignment hole and a lead plug, and a forward amplifying plate for amplifying the weak signals. The detector can achieve complex environment, Compton flashing and serious background interference always on-line measuring, eliminate the influence of nuclear site Compton flashing on 50keV-1.5MeV middle and low energy section radionuclide analysis measurement, and, at the same time, solve the difficulty that anti-coincidence measurement is unlikely to be achieved on a nuclear site.