金属-有机纳米管分散固相萃取-气相色谱-串联质谱高灵敏分析环境水样中痕量多氯联苯

引用本文: 黄芳, 佘晓坤, 周家斌, 王霞, 王晓利, 王珊珊, 赵汝松. 金属-有机纳米管分散固相萃取-气相色谱-串联质谱高灵敏分析环境水样中痕量多氯联苯[J]. 分析化学, 2017, 45(6): 856-861. doi: 10.11895/j.issn.0253-3820.170004 shu

Citation: HUANG Fang, SHE Xiao-Kun, ZHOU Jia-Bin, WANG Xia, WANG Xiao-Li, WANG Shan-Shan, ZHAO Ru-Song. Metal Organic Nanotubes-based Dispersive Solid Phase Extraction-Gas Chromatography-Tandem Mass Spectrometry for Sensitive Analysis of Polychlorinated Biphenyls in Environmental Water Samples[J]. Chinese Journal of Analytical Chemistry, 2017, 45(6): 856-861. doi: 10.11895/j.issn.0253-3820.170004 shu

金属-有机纳米管分散固相萃取-气相色谱-串联质谱高灵敏分析环境水样中痕量多氯联苯

1.
山东省分析测试中心, 济南 250014;
2.
武汉理工大学资源与环境工程学院, 武汉 430070
基金项目:
国家自然科学基金（No.21477068），山东省重点研发项目（No.2015GSF117011）和山东省自然科学基金（Nos.ZR2015YL003，ZR2016YL003）资助项目

摘要: 采用含铅金属-有机纳米管为吸附剂，基于分散固相萃取和气相色谱-串联质谱建立了一种高灵敏分析环境水样中痕量多氯联苯的方法。采用正交设计响应面法对影响萃取效果的重要因素（如离子强度、萃取时间和吸附剂用量等）进行了优化。获得的最优条件为：离子强度4.92%（w/V）NaCl，萃取时间4.5 min，正己烷为解吸剂，吸附剂用量62.5 mg。在优化条件下，方法的线性范围为2~1000 ng/L，检出限为0.26~0.82 ng/L。日内和日间相对标准偏差分别为0.8%~5.5%（200 ng/L，n=6）和2.7%~7.4%（200 ng/L，n=6）。将本方法应用于实际环境水样中多氯联苯的分析，回收率为78.9%~113.3%，结果满意。

关键词:

English

Metal Organic Nanotubes-based Dispersive Solid Phase Extraction-Gas Chromatography-Tandem Mass Spectrometry for Sensitive Analysis of Polychlorinated Biphenyls in Environmental Water Samples

1.
Analysis and Test Center, Shandong Academy of Sciences, Jinan 250014, China;
2.
School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
Received Date: 03 January 2017
Revised Date: 30 March 2017
Fund Project:
This work was supported by the National Natural Science Foundation of China (No.21477068).

Abstract: A method of metal organic nanotubes-based dispersive solid phase extraction-gas chromatography-tandem mass spectrometry was developed for sensitive analysis of polychlorinated biphenyls in environmental water samples. Related important factors influencing enrichment efficiency, such as ionic strength, extraction time and amount of adsorbent, were investigated. Response surface methodology was used to optimize these factors in detail. Under the optimal conditions such as 4.92% (w/V) NaCl, 4.5 min of extraction time, 62.5 mg of adsorbent, and n-hexane as desorption solvent, wide linearity (2-1000 ng/L or 5-1000 ng/L), and low limits of detection (0.26-0.82 ng/L) were achieved. The intra-day and inter-day relative standard deviations were 0.8%-5.5% (200 ng/L, n=6)and 2.7%-7.4% (200 ng/L, n=6), respectively. Finally, this method was successfully applied to the sensitive analysis of 6 kinds of PCBs in environmental water samples, with satisfactory recoveries of 78.9%-113.3%.

Key words:

Metal organic nanotubes
/ Dispersive solid phase extraction
/ Gas chromatography-tandem mass spectrometry
/ Polychlorinated biphenyls
/ Water samples

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

金属-有机纳米管分散固相萃取-气相色谱-串联质谱高灵敏分析环境水样中痕量多氯联苯

English

Metal Organic Nanotubes-based Dispersive Solid Phase Extraction-Gas Chromatography-Tandem Mass Spectrometry for Sensitive Analysis of Polychlorinated Biphenyls in Environmental Water Samples

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通讯作者: 陈斌, bchen63@163.com

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金属-有机纳米管分散固相萃取-气相色谱-串联质谱高灵敏分析环境水样中痕量多氯联苯

English

Metal Organic Nanotubes-based Dispersive Solid Phase Extraction-Gas Chromatography-Tandem Mass Spectrometry for Sensitive Analysis of Polychlorinated Biphenyls in Environmental Water Samples

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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