磁固相萃取快速测定环境水样中莠去津和扑草净

doi:10.16088/j.issn.1001-6600.2015.04.018

广西师范大学学报（自然科学版） ›› 2015, Vol. 33 ›› Issue (4): 108-114.doi: 10.16088/j.issn.1001-6600.2015.04.018

磁固相萃取快速测定环境水样中莠去津和扑草净

李云荣, 吴昊, 田婷婷, 袁晋, 刘莉芳, 米伟, 常银霞, 杜黎明

山西师范大学化学与材料科学学院,山西临汾041004

收稿日期:2015-06-01 出版日期:2015-12-25 发布日期:2018-09-21
通讯作者: 杜黎明(1949—),男,山西临猗人,山西师范大学教授,博导。E-mail: lmd@dns.sxnu.edu.cn
基金资助:
国家自然科学基金资助项目(81402895);山西省青年科学基金资助项目(2014021018-3)

Fast Determination of Atrazine and Prometryn in Environmental Water Sample by Magnetic Solid Phase Extraction

LI Yun-rong, WU Hao, TIAN Ting-ting, YUAN Jin, LIU Li-fang, MI Wei, CHANG Yin-xia, DU Li-ming

School of Chemistry and Material Science, Shanxi Normal University, Linfen Shanxi 041004, China

Received:2015-06-01 Online:2015-12-25 Published:2018-09-21

摘要/Abstract

摘要： 采用溶剂热法一步合成得到硅藻土-还原石墨烯-四氧化三铁磁性材料,并将其作为磁固相萃取的吸附剂,结合高效液相色谱对环境水样中的莠去津和扑草净进行测定。对磁性材料的种类、样品溶液pH、磁性材料的用量、吸附时间、解析液的种类以及解析时间等对萃取率的影响因素进行了优化。在最佳条件下,莠去津和扑草净的线性相关系数分别为0.999 5和0.999 6,线性范围分别为0.5~120 μg/L和1~120 μg/L,检出限分别为0.055 μg/L和0.04 μg/L,样品的加标回收率是95.2%~103%。实验结果表明该方法可以成功地用于环境水样中的莠去津和扑草净的准确测定。

关键词: 磁固相萃取, 莠去津, 扑草净, 高效液相色谱, 环境水样

Abstract: Diatomite/reduced graphene oxide/ magnetite composites were synthesized by a new method and were used as an adsorbent for the magnetic solid phase extraction. Combing with high-performance liquid chromatography-UV, atrazine and prometryn were measured in environmented water. The effects of various experimental parameters, such as the kinds and amount of magnetic materials, sample pH, extraction time, selection of desorption solvent and etc, were optimized. Under optimal conditions, Atrazine and Prometryn exhibited good linearity, with correlation coefficients of 0.999 5 and 0.999 6, linear range of 0.5~120 μg/L and 1~120 μg/L, and limit of detection of 0.055 and 0.04 μg/L, respectively. The spiked recovery for samples was in the range of 95.23%~102.56%. The experimental results indicate that the proposed method was successfully applied to the analysis of triazine herbicides in environmental water.

Key words: magnetic solid phase extraction, atrazine, prometryn, high-performance liquid chromatography, environmental water

中图分类号:

O656.3

李云荣, 吴昊, 田婷婷, 袁晋, 刘莉芳, 米伟, 常银霞, 杜黎明. 磁固相萃取快速测定环境水样中莠去津和扑草净[J]. 广西师范大学学报（自然科学版）, 2015, 33(4): 108-114.

LI Yun-rong, WU Hao, TIAN Ting-ting, YUAN Jin, LIU Li-fang, MI Wei, CHANG Yin-xia, DU Li-ming. Fast Determination of Atrazine and Prometryn in Environmental Water Sample by Magnetic Solid Phase Extraction[J]. Journal of Guangxi Normal University(Natural Science Edition), 2015, 33(4): 108-114.

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磁固相萃取快速测定环境水样中莠去津和扑草净

Fast Determination of Atrazine and Prometryn in Environmental Water Sample by Magnetic Solid Phase Extraction

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