36 results about "Coumaphos" patented technology

Annoying insects are controlled by attaching an insect control device to the body of the animal to be treated. The insect control device is a molded article, preferably in the form of an ear tag, which has been formed from a powder mixture of coumaphos and diazinon, polyvinyl chloride, and a plasticizer. The coumaphos and diazinon are generally used in an amount that would prolong the insecticidal activity without detracting from the suitability of the device.

The invention relates to a method for preparing coumaphos by an aqueous phase method, belonging to the field of chemical vermifuge synthesis technologies. The method comprises the following steps: (A) feeding materials: feeding water into a reaction kettle, starting a stirrer, then feeding an acid-binding agent, 3-chlorin-4-methyl-7 hydroxy coumarin and a phase transfer catalyst, and adding ethylchloride; (B) controlling temperature: reacting at room temperature after feeding the materials, increasing the temperature to 50-80 DEG C and then reacting for 20-150 minutes, and discharging the materials; (C) discharging, washing and drying the materials: placing the materials into a vacuum filter to filter out waste water, then washing the coumaphos as a target product to be neutral by clear water, and then delivering the coumaphos as the target product into a drying chamber for controlling the temperature and drying. The invention has low reaction temperature, short reaction time and high yield, prevents a large quantity of organic solvents from being used, eliminates flammable and explosive hidden troubles and is outstanding in environmental protection effect.

The invention relates to a method for simultaneous detection of residual quantity of fluvalinate, triadimenol and coumaphos in royal jelly. So far, there has not been a method capable of simultaneously detecting residual quantity of fluvalinate, triadimenol and coumaphos in royal jelly. The reagents used in the invention comprise chromatographically pure acetonitrile, water, analytically pure anhydrous sodium sulfate, n-propanol, fluvalinate, triadimenol, coumaphos, analytically pure ammonia liquor and chromatographically pure methanol; the method comprises the processes of preparation of a standard stock solution, preparation of blended standard intermediate liquid, preparation of standard liquid, preparation of a standard curve, treatment of samples and detection of samples. The invention has the characteristics of simple operation, high detection efficiency, high detection precision, with detection limits for coumaphos, triadimenol and fluvalinate respectively being 1.6 mu g / kg, 2.1 mu g / kg and 2.0 mu g / kg by using the method of determining corresponding concentration on the basis of the equation of signal to noise ratio that S / N=3, and capacity of simultaneous detection of residual quantity of fluvalinate, triadimenol and coumaphos in royal jelly.

The invention discloses an enzyme-linked immunosorbent assay kit for detecting diethoxy phosphorothioate organic phosphorus pesticide, which comprises a kit body, an ELISA plate coated with the antigen of the diethoxy phosphorothioate organic phosphorus pesticide, an antibody solution against diethoxy phosphorothioate organic phosphorus pesticide, a second anti-solution, a standard solution, a concentrated extracting solution, a substrate solution, a buffer solution of the substrate, a concentrated washing liquid and a stopping liquid. The organic phosphorus pesticide refers to the organic phosphorus pesticide containing the common structure of diethoxy phosphorothioate, in particular parathion, coumaphos, quinalphos, triazophos, phoxim, dichlofenthion, phorate, chlorpyrifos, bromophos ethyl, isazofos, diazinon, sulfotep and a mixture thereof. The enzyme-linked immunosorbent assay kit can be used to detect the organic phosphorus residues in fruits, vegetables, soil and water, and isconvenient in operation, high in sensitivity, low in price and is suitable for high-throughput screening monitored on spot.

The invention discloses a formula and process of coumaphos. Coumaphos is suitable for various melons, fruits and vegetables and mainly has good insecticidal effects on fly pests. Coumaphos is mainly used for controlling various leaf miners on various melons and fruits, solanaceous vegetables, beans and leaf vegetables, such as liriomyza sativae Blanchard, liriomyza huidobrensis Blanchard, Melanagromyza sojae (Zehntner) de Meijere, Liriomyza chinensis (Kato) and American serpentine leaf miners and for controlling root maggots (red-eye grass mosquitoes on leeks), and the like on leeks, scallions and garlic in present melon, fruit and vegetable production. A broad-spectrum, efficient and multifunctional insecticide for livestock is prepared by adopting the formula and the process.