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建立混合拟除虫菊酯类农药的三重四级杆气质联用仪(GC/MS/MS)定性分析方法;应用三重四级杆气质联用仪对拟除虫菊酯类农药进行定性分析,比较不同条件下拟除虫菊酯类农药的保留时间、母离子和子离子的关系、碰撞能量等影响因素,得到了拟除虫菊酯类农药的GC/MS/MS定性分析方法,其中溴氰菊酯的GC/MS/MS检出限为30ppb,其它拟除虫菊酯类农药的检出限均低于30ppb,为实际案件中拟除虫菊酯类农药的定性分析提供了方法和依据。
A qualitative analysis method of triple quadrupole GC / MS with mixed pyrethroid pesticides was established. The pyrethroid pesticides were qualitatively analyzed by triple quadrupole GC / MS, and compared under different conditions Pyrethroid pesticides retention time, the relationship between precursor ions and daughter ions, collision energy and other influencing factors, obtained pyrethroid pesticides by GC / MS / MS qualitative analysis method, which deltamethrin GC / MS / MS The detection limit was 30ppb. The detection limits of other pyrethroid pesticides were all less than 30ppb, which provided the basis and method for the qualitative analysis of pyrethroid pesticides in practical cases.