★Features:

◇Standards Implementation: National Standard GB/T 5009. 199-2003--Rapid Detection of Organophosphorus and Carbamate Pesticide Residues in Vegetables and Rapid Detection KJ 201710--Rapid Detection of Trichlorfon, Profenofos, Methomyl, Carbofuran and dichlorvos Residues in Vegetables issued by General Administration of Market Supervision and Administration

◇Efficiency has been verified by third party organizations in many provinces

◇Technology of organophosphorus pesticide residues were awarded the second prize of National Science and Technology Progress in China

◇High sensitivity

◇Over 20 years of R&D technology guarantee of profession and quality, reliable brands among customers

★Description:

Under certain conditions, organophosphorus and carbamate pesticides can inhibit the normal function of cholinesterase, and the inhibition rate was positively correlated with the concentration of pesticides. Subsequently, the nerve conduction metabolites (acetylcholine) can act as the substrate of hydrolysis catalyzed by the residue enzyme. As the product of the second reaction, the hydrolysate can react with the chromogenic agent and the yellow substance is produced in the next step. With the measurement of the change of absorbance value by spectrophotometer, the inhibitory rate can be calculated and then the presence of organophosphate or carbamate pesticides in samples can be determined accordingly.

★Industries: 

market supervision and management, food safety testing institutions, agriculture production, agricultural markets, vegetable production bases, wholesale markets, supermarkets, etc.