위장형주입장치를 이용한 잔류농약 신속전처리 및 다성분 동시 분석법
Rapid Sample Preparation and Multiple Presticides Residue Analysisin Food by GC/MS using Stomach Shaped Large Volume Injector
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Abstract
As the number of imported agricultural products is now increasing in Japan, Japanese Ministry of Health, Labor and Welfare had set pesticide residue standards for 750 pesticides on individual agricultural products to assure the safety in 2006. It was resulted in a strong demand for increased analytical throughput, which necessitates the use of simple sample pretreatment and efficient analysis for routine work. This paper describes a method for increasing GC/MS system detection limits by making large volume injections using new programmable temperature vaporizer as LaviStomaTM within stomach shaped liner. To achieve an optimum performance, several solid phase extraction conditions were investigated. Acetone and Hexane were chosen as acceptor phase with alternating dichloromethane. Moreover, the influence of matrix effects was examined by adding different agricultural samples. Agricultural Samples including 160 pesticides were prepared at 0.1mg/ kg by adding each pesticide. These samples were analyzed by GC/MS, and confirmed for analytical recoveries.
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