For the vast and irrational use of pesticide,the problem of pesticide residues becomes more and more remarkable, especially the pesticide residues in food and medicine. The safety of food has become an important means of trade protection, so it is necessary for us to establish a systemic multi-residues method for the determination of pesticides and improve detecting skills in order to ensure the export of our fruits and vegetables and detect new pesticide residues in fruit imports. In addition, it is...