[Objective]The research aimed to optimize the purification material in order to detect the pesticide residue in chives.[Method] QuEChERS method was used to optimize the purification material of pesticide residues in chives from primary secondary amine(PSA),magnesium silicate(florisil),neutral alumina and graphene,and the procymidone was used to standard addition test for material that was occasionally detected in the laboratory.[Results] All the four kinds of purification material could purify the chives su...