液相色谱检测水体中聚酯类农残的研究

Spectronic Instruments & Analysis(2011)

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Abstract
水中拟除虫菊酯类农药(甲氰菊酯、顺-氯氰菊酯、三氟氯氰菊酯、氯氰菊酯、溴氰菊酯、氰戊菊酯、氯菊酯、顺-氯菊酯、联苯菊酯、莠去津、百菌清)用HPLC(紫外检测器)进行了加标准定性定量分析,用液液萃取和液固萃取分别对样品前处理优化了提取效率,样品液液萃取时经过盐析,二氯甲烷提取后浓缩至干,乙腈转相分析回收率在71.0~111%,相关系数大于0.99。液固萃取用C18小柱富集,二氯甲烷和乙酸乙酯洗脱,洗脱液浓缩至干,乙腈转相分析回收率在60.0~145%,方法检出限在0.043~0.155ug/L。该方法简便、快速、灵敏。并对本公司的黄河源水、出厂水、管网水进行了监测,均未检出拟除虫菊酯类农药。
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Key words
Determination,Ultraviolet-Liquid Chromatography,Liquid-Solid Extraction,Pyrethroids,Water
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