中空纤维膜液相微萃取–气相色谱法测定水中有机氯农药的研究
Study on the Determination of Organo-Chlorine Pesticides in Water by Method of Hollow Fiber Membrane Liquid Microextraction-Gas Phase Chromatography

作者: 徐洁 , 李秀峰 , 储险峰 :江西省环境监测中心站,南昌; 马驰远 , 吴小琴 , 董永全 :江西省持久性污染物控制与资源循环利用重点实验室,南昌航空大学环境与化学工程学院,南昌;

关键词: 中空纤维膜液相微萃取有机氯农药气相色谱Hollow Fiber Membrane Liquid Microextraction Organo-Chlorine Pesticides Gas Phase Chromatography

摘要:

建立中空纤维膜液相微萃取–气相色谱测定水中有机氯农药的新方法。研究了萃取体系、萃取时间、萃取温度、溶液pH值、搅拌速度等因素对萃取效率的影响,确定中空纤维膜液相微萃取的最佳条件:以正己烷/甲苯为萃取剂,萃取时间为20 min,萃取温度为40℃,搅拌速度为500 r/mim,pH值为中性。在最优条件下,对实际水样进行分析检测,α-666、β-666、γ-666、δ-666、P,p’-DDE、P,p’-DDD、o,p’-DDT、P,p’-DDT的加标回收率分别为101.1%、56.7%、60.3%、67.0%、135.1%、83.1%、121.7%和74.3%,表明这种方法对水中α-666、P,p’-DDT和P,p’-DDE有很好的检出效果。
The determination method for organo-chlorine pesticide in water using hollow fiber membrane liquid microextraction coupling with gas phase chromatography was developed. The effects of extracting system, extraction time, pH value, mixing speed and extraction temperature on recovery of organo-chlorine pesticide in water were investigated and the optimum extraction conditions were gained and listed as follows: using n-hexane/toluene as organic extractant, extraction time of 20 min, extraction temperature of 40℃, mixing speed of 500 rpm, neutral solution. Under the optimum conditions, the recovery rates of α-666, β-666, γ-666, δ-666, P,p’-DDE, P,p’-DDD, o,p’-DDT, P,p’-DDT in actual sample were 101.1%, 56.7%, 60.3%, 67.0%, 135.1%, 83.1%, 121.7% and 74.3%, respectively. The results showed that this method is feasible for P,p’-DDT, α-666 and P,p’-DDE determination in water.

文章引用: 徐洁 , 李秀峰 , 储险峰 , 马驰远 , 吴小琴 , 董永全 (2014) 中空纤维膜液相微萃取–气相色谱法测定水中有机氯农药的研究 。 水污染及处理, 2, 19-27. doi: 10.12677/WPT.2014.23004

参考文献

[1] 谢武明, 胡勇有, 刘焕彬, 等 (2004) 持久性有机污染物(POPs)的环境问题与研究进展. 中国环境监测, 2, 58-61.

[2] 齐美富, 桂双林 (2008) 持久性有机污染物(POPs)治理现状及研究进展. 江西科学, 1, 92-96.

[3] 陈晓娟, 皇甫铮 (2011) 持久性有机污染物(POPs)的危害及现状分析. 污染防治技术, 6, 17-21.

[4] Stig, P.B., Knut, E.R. and Trine, G.H. (2000) Liquid-liquid extraction procedures for sample enrichment in capillary zone electrophoresis. Journal of Chromatography A, 902, 91-105.

[5] 王娜, 王海娇, 汪寅夫, 等 (2010) 液–液萃取–气相色谱法测定水中9种有机氯农药. 岩矿测试, 5, 497-502.

[6] 许秀艳, 张颖, 程麟钧, 等 (2010) 固相萃取-GC/MS法测定水中16种有机氯农药. 环境监测管理与技术, 6, 51-54.

[7] 董春洲, 王文芳 (2006) 顶空固相微萃取气相色谱法测定水中有机氯农药及类似物. 化学分析计量, 1, 27-29.

[8] 史景程, 张丽君, 张占恩 (2013) 分散固相萃取–气相色谱–质谱法直接测定水中20种有机氯农药. 江苏农业科学, 7, 284-286.

[9] 王宇, 朱成华, 邹晓莉, 等 (2013) 溶剂去乳化–悬浮固化分散液液微萃取–气相色谱–质谱联用测定水中的有机氯农药. 色谱, 11, 1076-1080.

[10] Ouyang, G. and Pawliszyn, J. (2006) Kinetic calibration for automated hollow fiber-protected liquid-phase microextraction. Analytical Chemistry, 78, 5783-5788.

[11] Dubey, D.K., Pardasani, D., Tak, V., et al. (2006) Hollow fiber-mediated liquid-phase microextraction of chemical warfare agents from water. Journal of Chromatography A, 1107, 29-35.

[12] Basheer, C., Obbard, J.P. and Lee, H.K. (2005) Analysis of persistent organic pollutants in marine sediments using a novel microwave assisted solvent extraction and liquid-phase microextraction technique. Journal of Chromatography A, 1068, 221-228.

[13] Pedersen-Sjergaard, S. and Rasmussen, K.E. (1999) Liquid-liquid-liquid microextraction for sample preparation of biological fluids prior to capillary electrophoresis. Analytical Chemistry, 71, 2650-2656.

[14] 邵焰, 张丽君, 张占恩 (2011) 中空纤维膜–液相微萃取–气相色谱/质谱法测定土壤中拟除虫菊酯农药. 分析化学, 39, 1753-1757.

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