采用醇基超分子溶剂微萃取和高效液相色谱法检测有机磷农药残留

Alkanol-based supramolecular solvent microextraction of organophosphorus pesticides and their determination using high-performance liquid chromatography

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中文摘要:本文采用倒六角烷醇聚合物制成的超分子溶剂和高效液相色谱法对三种有机磷农药(毒死蜱、二嗪磷、伏杀硫磷)进行提取和检测。根据全因子实验,我们发现:醇量百分比、THF和pH值为有效因子。在醇量为100毫克、THF为5%、pH值为3.9的最佳条件下,检测限为0.5-1.3 ng/mL,线性范围为1.6-500 ng/mL,日内和日间相对标准差分别为3.3-5.0 和5.1-6.3。本方法还成功地应用于果汁和自来水样品中的农药残留检测。
外文摘要:A sensitive method for extraction and determination of three organophosphorus pesticides (chlorpyrifos, diazinon, phosalone) using a supramolecular solvent (SUPRAS) made of inverted hexagonal aggregates of alkanol and high-performance liquid chromatography with ultraviolet detection (HPLC-UV) was developed. The studied factors were alkanol amount, THF percentage (v/v), pH and vortex time. According to the full factorial design results, the effective parameters were alkanol amount, THF percentage (v/v) and pH. Then, a CCF was applied to obtain optimal conditions. The optimized conditions were obtained at 100 mg of alkanol, 5% of THF and pH 3.9. The limits of detection of pesticides were 0.5-1.3 ng/mL. The linearity was 1.6-500.0 ng/mL for different pesticides. Relative standard deviations for intra- and inter-day extraction of pesticides were 3.3-5.0 and 5.1-6.3, respectively, for five measurements. The method was also successfully applied for the determination of the pesticides in fruit juice and tap water samples.
 
外文关键词:Alkanol-based supramolecular solvent microextraction, Organophosphorus pesticides, High-performance liquid chromatography
作者:Peyrovi, Moazameh; Hadjmohammadi, Mohammadreza
作者单位:Univ Mazandran, Dept Chem, Niroo Havayii Blvd, Babol Sar 4741695447, Iran.
期刊名称:JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
期刊影响因子:1.3
出版年份:2017
出版刊次:3
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  1. 编译服务:农产品质量安全
  2. 编译者:贵淑婷
  3. 编译时间:2017-05-12