A DETECTION METHOD FOR TRACE BENZO (a) PYRENE IN COKING WASTEWATER BY SOLID-PHASE EXTRACTION AND GC-MS ANALYSIS

HOU Pin; ZHANG Yu; PENG Lian; ZHAO Junhui; BU Qingwei; WANG Jianbing; BEN Weiwei; QIANG Zhimin

doi:DOI:10.13205/j.hjgc.202207023

Volume 40 Issue 7

Sep. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(7): 159-164,185

HOU Pin, ZHANG Yu, PENG Lian, ZHAO Junhui, BU Qingwei, WANG Jianbing, BEN Weiwei, QIANG Zhimin. A DETECTION METHOD FOR TRACE BENZO (a) PYRENE IN COKING WASTEWATER BY SOLID-PHASE EXTRACTION AND GC-MS ANALYSIS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(7): 159-164,185. doi: DOI:10.13205/j.hjgc.202207023

Citation:

HOU Pin, ZHANG Yu, PENG Lian, ZHAO Junhui, BU Qingwei, WANG Jianbing, BEN Weiwei, QIANG Zhimin. A DETECTION METHOD FOR TRACE BENZO (a) PYRENE IN COKING WASTEWATER BY SOLID-PHASE EXTRACTION AND GC-MS ANALYSIS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(7): 159-164,185. doi: DOI:10.13205/j.hjgc.202207023

Citation:

HOU Pin, ZHANG Yu, PENG Lian, ZHAO Junhui, BU Qingwei, WANG Jianbing, BEN Weiwei, QIANG Zhimin. A DETECTION METHOD FOR TRACE BENZO (a) PYRENE IN COKING WASTEWATER BY SOLID-PHASE EXTRACTION AND GC-MS ANALYSIS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(7): 159-164,185. doi: DOI:10.13205/j.hjgc.202207023

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A DETECTION METHOD FOR TRACE BENZO (a) PYRENE IN COKING WASTEWATER BY SOLID-PHASE EXTRACTION AND GC-MS ANALYSIS

doi: DOI:10.13205/j.hjgc.202207023

1. School of Chemical & Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China;
2. Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

Received Date: 2021-03-16
Available Online: 2022-09-02

Abstract

Abstract

Based on solid phase extraction (SPE) and gas chromatography/mass spectrometry (GC-MS),the study herein established a quantitative analysis method for trace benzo (a) pyrene (BaP) in coking wastewater.The BaP-containing water samples were enriched and purified by SPE after being modified by methanol,then eluted by dichloromethane,concentrated by nitrogen blowing,and quantified by GC-MS after constant volume of dichloromethane or acetonitrile.The results showed that,after the optimization of sample pretreatment and under the analysis conditions,the linear correlation coefficient (R²) of BaP standard curve was greater than 0.99,the recovery rate was in the range of 79.6%~85.5%,the detection limit and quantitative limit were 4.33 ng/L and 14.45 ng/L,respectively.This method was then applied to the determination of BaP in the secondary effluent of a coking plant in Inner Mongolia.The recoveries of spiked BaP samples were in the range of 83.3%~89.3%,indicating that this method presented high sensitivity and good selectivity.It is suitable for the quantitative determination of trace BaP in coking wastewater.
- benzo (a) pyrene,
- solid phase extraction,
- gas chromatography-mass spectrometry,
- coking wastewater,
- quantitative testing

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References(27)

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