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

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: 3 January 2017
Revised Date: 30 March 2017

Fund Project: This work was supported by the National Natural Science Foundation of China (No.21477068).

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