Analysis of Residual Pesticides in Foods using GC/MS (Part 2)

Introduction

In Japan as for residual pesticides in food products, the official gazette designated additional 108 items in 1995, 30 in 1996, 23 in 1997 and 18 in 1998. Pesticides that had been designated before 1995 are summarized in the Databook of Residual Pesticides in Foods (C180-0091). Application News No. M192 introduces examples of EI (electron ionization) analyses for pesticides regulated after 1995 that can be analyzed by GC/MS. This article introduces examples of analyzing these pesticides by the NCI (negative ion chemical ionization) method. The NCI method allows detection with higher sensitivity than the EI method for some compounds. Though the NCI method is especially effective for compounds containing chlorine, this article also shows examples of compounds not containing chlorine.

March 24, 2003 GMT