Hatakeyama Eriko, Kajita Hiroko, Sugawara Takashi, Sasaki Akira, Takahashi Satoru, Komukai Takashi
Research Institute for Environmental Sciences and Public Health of Iwate Prefecture: 1-36-1, Iiokasinden, Morioka 020-0852, Japan.
Shokuhin Eiseigaku Zasshi. 2006 Aug;47(4):137-45. doi: 10.3358/shokueishi.47.137.
A method for simultaneous determination of multiple pesticide residues in agricultural products was developed by using a pretreatment with ultrafiltration, followed by liquid chromatography-tandem mass spectrometry (LC/MS/MS). The pretreatment process (extraction of pesticides from agricultural products with methanol, dilution of the extract with water, and ultrafiltration) gave recoveries in the range of 50-150% for 63 of 83 pesticides spiked at 0.25 microg/ g into 6 agricultural products. The detection limits of pesticides by LC/MS/MS were below 0.0005-0.05 micro/g. This method is useful for screening purposes and for multiresidue analysis of pesticides in agricultural products. Pesticide residues in 50 domestic crops were investigated by this method, and residues of 14 pesticides were detected in 30 crops.
建立了一种同时测定农产品中多种农药残留的方法，该方法采用超滤预处理，然后进行液相色谱-串联质谱（LC/MS/MS）分析。预处理过程（用甲醇从农产品中提取农药，用水稀释提取物，然后超滤）对于添加到6种农产品中浓度为0.25微克/克的83种农药中的63种，回收率在50%-150%之间。LC/MS/MS对农药的检测限低于0.0005-0.05微克/克。该方法可用于筛选目的以及农产品中农药的多残留分析。采用该方法对50种国产农作物中的农药残留进行了调查，在30种农作物中检测到了14种农药的残留。
