Simultaneous Analysis of Pesticides Using Solid Phase Extraction and GC / MS with Hexane/Acetone Mixed Solvent

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  • ヘキサン－アセトン混合溶媒を用いた固相抽出-GC/MS 法による農薬類の一斉分析
  • ヘキサン-アセント混合溶媒を用いた固相抽出-GC/MS法による農薬類の一斉分析
  • ヘキサン-アセント コンゴウ ヨウバイ オ モチイタ コソウ チュウシュツ-GC/MSホウ ニ ヨル ノウヤクルイ ノ イッセイ ブンセキ

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Abstract

As of April 2020, 114 pesticides are included in a category referred to as "Complementary Items to Set the Target for Water Quality Management". Dichloromethane is used for the solid phase extraction process followed by GC/MS measurement in the standard method 5 and 5-2 to monitor these pesticide concentrations. However, it is well known that dichloromethane has potential health and environmental risks. Thus, the extraction solvent was changed to a mixture ratio of hexane and acetone of 90:10, and a solidphase extraction method was studied for 63 pesticides to evaluate the validity of the measurement method. As a result, it was confirmed that 58 pesticides could be measured without significantly changing the conventional solid phase extraction procedure, and a health and environmentally friendly analytical method was established.

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