作者：陈烨, 许秀艳, 王超, 滕恩江, 吕怡兵

作者单位：中国环境监测总站, 北京 100012

关键词：地表水; 有机磷农药; 液液萃取; 固相萃取

摘要：

分别采用液液萃取法和固相萃取法提取地表水样品中的有机磷农药残留。液液萃取法的方法检出限为0.05~0.2 ng/mL,加标回收率为86%~103%,相对标准偏差为2%~7%;固相萃取法的方法检出限为0.03~0.05 ng/mL,加标回收率为49%~118%,相对标准偏差为5%~18%。液液萃取法处理不同类型基体水样的测试稳定性较好,固相萃取法则对于洁净环境水体中痕量有机磷农药残留的富集更为适用。

Comparison of pretreatment methods for determining organophosphorous pesticide residues in surface water

CHEN Ye, XU Xiu-yan, WANG Chao, TENG En-jiang, LÜ Yi-bing

China National Environmental Monitoring Centre, Beijing 100012, China

Abstract: Organophosphorous pesticides were extracted from surface water with liquid-liquid extraction (LLE) and solid-phase extraction (SPE) respectively. The limits of detection LLE were 0.05~0.2 ng/mL. And recoveries and relative standard deviations of spiked samples of LLE were 86%~103% and 2%~7%. Limits of detection SPE were 0.03~0.05 ng/mL. And recoveries and relative standard deviations of spiked samples of SPE were 49%~118% and 5%~18%. LLE method was suitable for determining trace organophosphorous pesticide residues in water samples with different matrix, while SPE was suitable for clean environmental water samples.

Keywords: surface water; organophosphorous pesticide; liquid-liquid extraction; solid phase extraction

2014, 40(1): 51-54  收稿日期: 2013-1-3;收到修改稿日期: 2013-3-15

基金项目: 

作者简介: 陈烨(1983-),女,硕士,专业方向为环境监测分析技术及方法研究。

参考文献

[1] 周文敏,傅德黔,孙宗光. 中国水中优先控制污染物黑名单的确定[J]. 环境科学研究,1991,4(6):9-12.
[2] 龚建中,车春玲. 岩溶地下水中微量有机氯、有机磷农药的气相色谱测定[J]. 环境化学,1988,7(6):52-57.
[3] 季玉玲,王圣田,张乔,等. 气相色谱法测定水中有机氯、有机磷和氨基甲酸酯多农药残留[J]. 色谱,1992,10(2):94-96.
[4] 于鸿,黄聪,甘平胜,等. 气相色谱法测定水中7种有机磷农药[J]. 中国卫生检验杂志,2008,18(1):2258-2259.
[5] 陈烨,许秀艳,吕怡兵,等. 固相萃取-双柱气相色谱法测定水中多种有机磷农药残留[J]. 中国测试,2011,37(5):53-55.
[6] Zhu X L, Yang J, Su Q D, et al. Selective solid-phase extraction using molecularly imprinted polymer for the analysis of polar organophosphorus pesticides in water and soil samples[J]. Journal of Chromatography A,2005(2):161-169.
[7] Angelo A D, Maria F, Pietro M, et al. Comparison of different sorbent for multiresidue solid-phase extraction of 16 pesticides from groundwater coupled wtih high-performance liquid chromatography[J]. Talanta,2007,71(1):25-30.
[8] 国家环境保护总局. 水和废水监测分析方法[M]. 4版.北京:中国环境科学出版社,2002.
[9] GB 13192-1991水质 有机磷农药测定 气相色谱法[S].北京:中国标准出版社,1991.
[10] 蔡道基. 杀虫剂环境毒理研究[M]. 北京:中国环境科学出版社,1998.
[11] 祝海珍. 敌百虫残留的萃取、分离与检测的研究和重金属离子的芯片毛细管电泳分离检测[D]. 南京:南京农业大学,2008.
[12] 江苏省环境监测中心. 地表水环境质量80个特定项目监测分析方法[M]. 北京:中国环境科学出版社,2009.
[13] 于慧娟,蔡友琼,李庆,等. 色谱-质谱法研究敌百虫在气相色谱分析过程中产生的分解产物[J]. 色谱,2006,24(1):23-25.
[14] 于慧娟,蔡友琼,沈晓盛,等. 气-质联用技术研究敌百虫在气相色谱分析过程中的分解产物[J]. 分析科学学报,2005,21(6):655-657.
[15] Zhu H Z, Cui Y M, Zheng X W, et al. Determination of trace trichlorfon by high performance liquid chromotagraphy with UV detection based on its catalytic effect on sodium perborate oxidizing benzidine[J]. Analytica Chemica Acta,2007(584):166-171.
[16] GB 3838-2002地表水环境质量标准[S]. 北京:中国标准出版社,2002.
[17] GB 5749-2006生活饮用水卫生标准[S]. 北京:中国标准出版社,2006.