The Food Sanitation Law was amended in May 2003, and pesticides, etc. were regulated under a positive list system from May 2006. The introduction of this system has led to the use of several simultaneous multi-component testing methods to increase the efficiency of testing.
This test method introduces the pretreatment of crops for residual pesticide analysis by GC/MS and LC/MS, which were included at the same time in the notification of the positive list system.