Determination of organochlorine pesticides in textiles using solid-phase microextraction with gas chromatography-mass spectrometry
Determination of organochlorine pesticides in textiles using solid-phase microextraction with gas chromatography-mass spectrometry
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DOI：
10.1016/j.microc.2013.04.008
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发表时间：
2013-09-01
影响因子：
4.8
通讯作者：
Ouyang, Gangfeng
中科院分区：
文献类型：
--
作者：
Cai, Jin'an;Zhu, Fang;Ouyang, Gangfeng
建立了固相微萃取（SPME）-气相色谱-质谱（GC/MS）同时测定生态纺织品中10种有机氯农药（OCPs）的方法。比较了市售的SPME纤维、100 μ m PDMS、85 μ m PA、65 μ m PDMS-DVB、75 μ m CAR/PDMS和30 μ m PDMS，100 μ m PDMS表现出对OCP的最佳性能。对影响固相微萃取萃取效率的各种因素进行了优化，包括萃取时间、解吸时间、萃取温度、盐度和pH值，最佳条件为：室温下萃取40 min，NaCl浓度为2%，pH值为6.0，进样口解吸4.0 min，温度为250 ℃。在优化条件下，检测限为0.04 μ g L ~（-1）（狄氏剂）~ 0.41 μ g L ~（-1）（艾氏剂），相对标准偏差（RSD）为3.2%~ 11.3%。将优化后的方法用于纺织品中10种有机氯农药的分析，回收率在70.0 ~ 112.6%之间。该研究说明了SPME在纺织品中OCPs常规分析中的潜在适用性。(C)2013爱思唯尔有限公司版权所有。
A method based on solid-phase microextraction (SPME) and gas chromatography with mass spectrometry (GC/MS) for the determination of 10 organochlorine pesticides (OCPs) in ecological textiles was described. Commercially available SPME fibers, 100 mu m PDMS, 85 mu m PA, 65 pm PDMS-DVB, 75 mu m CAR/PDMS and 30 mu m PDMS were compared and 100 mu m PDMS exhibited the best performance to the OCPs. Various parameters affecting the extraction efficiency of SPME were optimized, including extraction time, desorption time, extraction temperature, salinity and pH. The optimized conditions were 40 min extraction at room temperature, 2% NaCl content, pH 6.0, and 4.0 min desorption in GC injector port at 250 degrees C. Under the optimized conditions, the limits of detections ranged from 0.04 mu g L-1 (dieldrin) to 0.41 mu g L-1 (aldrin) and the RSDs were between 3.2% and 11.3%. The optimized method was then used to analyze 10 OCPs in textile samples, and good relative recoveries were obtained (from 70.0 to 112.6%). This study illustrated the potential applicability of SPME for routine analysis of OCPs in textiles. (C) 2013 Elsevier B.V. All rights reserved.