摘要
采用选择离子 气相色谱 质谱联用 (SIM GC MS)方式 ,依据保留时间和特征离子丰度比 ,对农药进行确证。此方法可以在 36min之内检测有机磷、有机氯、拟除虫菊酯和氨基甲酸酯等 48种农药 ,并可同时定性和定量 ,可用于蔬菜、水果等多种农产品的检测。根据检测农药的异同 ,检出限在 2 .0× 1 0 - 1 0 ～ 2 .0× 1 0 - 7( μg·g- 1 )。
A method for detectimg 48 pesticide residues in fruits and vegetables was studied. The detection was performed by SIM-GC-MS technique. Pesticides were positively confirmed by retention times and ion ratios.This method can be used to detect 48 pesticides including organophosphorus,organochlorines, pyrethroids and carbamates in farm products such as fruits and vegetables. The limit of detection ranges from 2.0×10 -10 -2.0×10 -7 (μg·g -1 ) depending on the different pesticides.
出处
《青岛科技大学学报（自然科学版）》
CAS
2003年第6期491-495,共5页
Journal of Qingdao University of Science and Technology:Natural Science Edition
