Due to the frequent occurrence of security incidents in textiles and food in recent years,people pay more and more attention on the safety of textiles and food.At the same time,the security problem of textile has also had a great impact on China's foreign trade.After the implementation of the Positive List System in Japan,the problem of pesticide residues in grain in China has also become an important factor restricting foreign trade.In view of the previous reasons,A method for the determination of 13 carba...