Citation: HUANG Huiqiu, HUANG Lilai, XIA Ping. Simultaneous determination of methylmercury and inorganic arsenics in aquatic products by gas chromatography-mass spectrometry with aqueous derivatization[J]. Chinese Journal of Chromatography, ;2016, 34(9): 918-924. doi: 10.3724/SP.J.1123.2016.04032 shu

Simultaneous determination of methylmercury and inorganic arsenics in aquatic products by gas chromatography-mass spectrometry with aqueous derivatization

1.
Pingyang County Center for Disease Prevention and Control, Wenzhou 325400, China;
2.
Food and Drug Inspection and Testing Center of Pingyang County, Wenzhou 325400, China

Received Date: 20 April 2016

A fast analytical method based on gas chromatography-mass spectrometry (GC-MS) with aqueous derivatization was established for the simultaneous determination of methylmercury and inorganic arsenics in aquatic products. Methylmercury and inorganic arsenics in samples were extracted with hydrochloric acid (6 mol/L) by ultrasonic extraction. After centrifugation at -10℃, inorganic arsenics (As³⁺ and As⁵⁺) were derivatized under 35℃ water bath for 30 min with 2,3-dimercapto-1-propanol (BAL), then the derivative and methylmercury were extracted with toluene. The non-fatty components in the hydrochloric acid extract were avoided to get into the toluene by adding absolute ethanol before extraction, so the tested solution was purified. Then sodium tetraphenylborate solution (pH 3.6) was added to toluene extraction solution as the derivatization reagent. After centrifugation, the derivatives in organic phase were determined by GC-MS with selected ion monitoring (SIM) mode, and quantified with external standard method. The results showed that the calibration curves were linear in the range of 5-2000 μg/L for methylmercury and inorganic arsenic with correlation coefficients (r) greater than 0.999, and the limits of detection (LODs) were 0.7-3 μg/kg (S/N=3). The recoveries were 80.0%-110.0% at three spiked levels (10, 100, 1000 μg/kg), and the relative standard deviations (RSDs) were 2.5%-9.4% (n=6). The new method is simple, accurate and sensitive, and it has been successfully applied to the determination of methylmercury and inorganic arsenics in real aquatic products for the risk monitoring of food pollutants.
- gas chromatograph-mass spectrometry (GC-MS),
- aqueous derivatization,
- methylmercury,
- inorganic arsenics,
- aquatic products
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
16. [16]
17. [17]
18. [18]
19. [19]
20. [20]
21. [21]
22. [22]
23. [23]
24. [24]
25. [25]
26. [26]
27. [27]
28. [28]
29. [29]
1. [1]
  Yanhui Zhong , Ran Wang , Zian Lin . Analysis of Halogenated Quinone Compounds in Environmental Water by Dispersive Solid-Phase Extraction with Liquid Chromatography-Triple Quadrupole Mass Spectrometry. University Chemistry, 2024, 39(11): 296-303. doi: 10.12461/PKU.DXHX202402017
2. [2]
  Runjie Li , Hang Liu , Xisheng Wang , Wanqun Zhang , Wanqun Hu , Kaiping Yang , Qiang Zhou , Si Liu , Pingping Zhu , Wei Shao . 氨基酸的衍生及手性气相色谱分离创新实验. University Chemistry, 2025, 40(6): 286-295. doi: 10.12461/PKU.DXHX202407059
3. [3]
  Zunxiang Zeng , Yuling Hu , Yufei Hu , Hua Xiao . Analysis of Plant Essential Oils by Supercritical CO₂Extraction with Gas Chromatography-Mass Spectrometry: An Instrumental Analysis Comprehensive Experiment Teaching Reform. University Chemistry, 2024, 39(3): 274-282. doi: 10.3866/PKU.DXHX202309069
4. [4]
  Shunü Peng , Huamin Li , Zhaobin Chen , Yiru Wang . Simultaneous Application of Multiple Quantitative Analysis Methods in Gas Chromatography for the Determination of Active Ingredients in Traditional Chinese Medicine Preparations. University Chemistry, 2025, 40(10): 243-249. doi: 10.12461/PKU.DXHX202412043
5. [5]
  Ke Qiu , Fengmei Wang , Mochou Liao , Kerun Zhu , Jiawei Chen , Wei Zhang , Yongyao Xia , Xiaoli Dong , Fei Wang . A Fumed SiO₂-based Composite Hydrogel Polymer Electrolyte for Near-Neutral Zinc-Air Batteries. Acta Physico-Chimica Sinica, 2024, 40(3): 2304036-0. doi: 10.3866/PKU.WHXB202304036
6. [6]
  Xiaowu Zhang , Pai Liu , Qishen Huang , Shufeng Pang , Zhiming Gao , Yunhong Zhang . Acid-Base Dissociation Equilibrium in Multiphase System: Effect of Gas. University Chemistry, 2024, 39(4): 387-394. doi: 10.3866/PKU.DXHX202310021
7. [7]
  Jiao CHEN , Yi LI , Yi XIE , Dandan DIAO , Qiang XIAO . Vapor-phase transport of MFI nanosheets for the fabrication of ultrathin b-axis oriented zeolite membranes. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 507-514. doi: 10.11862/CJIC.20230403
8. [8]
  Yuanchun Pan , Xinyun Lin , Leyi Yang , Wenya Hu , Dekui Song , Nan Liu . Artificial Intelligence Science Practice: Preparation of Electronic Skin by Chemical Vapor Deposition of Graphene. University Chemistry, 2025, 40(11): 272-280. doi: 10.12461/PKU.DXHX202412052
9. [9]
  Lingyu Chang , Yanfang Lang , Yuyan Zhu , Jie Wang , Ying Guo , Die Wang , Peng Ding , Yueming Zhou , Zhixiang Gong , Shujuan Liu . Machine Learning-Optimized Microcolumn Ion Exchange Chromatography for Trace Arsenic Determination. University Chemistry, 2026, 41(1): 76-84. doi: 10.12461/PKU.DXHX202506023
10. [10]
  Yifan Xie , Liyun Yao , Ruolin Yang , Yuxing Cai , Yujie Jin , Ning Li . Exploration and Practice of Online and Offline Hybrid Teaching Mode in High-Performance Liquid Chromatography Experiment. University Chemistry, 2025, 40(11): 100-107. doi: 10.12461/PKU.DXHX202412133
11. [11]
  Gaoyan Chen , Chaoyue Wang , Juanjuan Gao , Junke Wang , Yingxiao Zong , Kin Shing Chan . Heart to Heart: Exploring Cardiac CT. University Chemistry, 2024, 39(9): 146-150. doi: 10.12461/PKU.DXHX202402011
12. [12]
  Meiran Li , Yingjie Song , Xin Wan , Yang Li , Yiqi Luo , Yeheng He , Bowen Xia , Hua Zhou , Mingfei Shao . Nickel-Vanadium Layered Double Hydroxides for Efficient and Scalable Electrooxidation of 5-Hydroxymethylfurfural Coupled with Hydrogen Generation. Acta Physico-Chimica Sinica, 2024, 40(9): 2306007-0. doi: 10.3866/PKU.WHXB202306007
13. [13]
  Zhiwen HU , Weixia DONG , Qifu BAO , Ping LI . Low-temperature synthesis of tetragonal BaTiO₃ for piezocatalysis. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 857-866. doi: 10.11862/CJIC.20230462
14. [14]
  Haiyang Zhang , Yanzhao Dong , Haojie Li , Ruili Guo , Zhicheng Zhang , Jiangjiexing Wu . Exploring the Integration of Chemical Engineering Principle Experiment with Cutting-Edge Research Achievements. University Chemistry, 2024, 39(10): 308-313. doi: 10.12461/PKU.DXHX202405035
15. [15]
  Xiaojun Liu , Lang Qin , Yanlei Yu . Dynamic Manipulation of Photonic Bandgaps in Cholesteric Liquid Crystal Microdroplets for Applications. Acta Physico-Chimica Sinica, 2024, 40(5): 2305018-0. doi: 10.3866/PKU.WHXB202305018
16. [16]
  Shuai Bi , Xixi Wang , Wei Zhai , Zhenyu Shi , Zijian Li , Li Zhai , An Zhang , Yuhui Tian , Ting Cheng , Yao Yao , Zhiying Wu , Jiawei Liu , Hua Zhang . Phase engineering of nanomaterials: from fundamentals to application frontiers. Acta Physico-Chimica Sinica, 2026, 42(3): 100188-0. doi: 10.1016/j.actphy.2025.100188
17. [17]
  Yan'e LIU , Shengli JIA , Yifan JIANG , Qinghua ZHAO , Yi LI , Xinshu CHANG . MoO₃/cellulose derived carbon aerogel: Fabrication and performance as cathode for lithium-sulfur battery. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1565-1573. doi: 10.11862/CJIC.20250054
18. [18]
  Xiangli Wang , Yuanfu Deng . Teaching Design of Elemental Chemistry from the Perspective of “Curriculum Ideology and Politics”: Taking Arsenic as an Example. University Chemistry, 2024, 39(2): 270-279. doi: 10.3866/PKU.DXHX202308092
19. [19]
  Mingyang Men , Jinghua Wu , Gaozhan Liu , Jing Zhang , Nini Zhang , Xiayin Yao . Sulfide Solid Electrolyte Synthesized by Liquid Phase Approach and Application in All-Solid-State Lithium Batteries. Acta Physico-Chimica Sinica, 2025, 41(1): 100004-0. doi: 10.3866/PKU.WHXB202309019
20. [20]
  Yajie Li , Bin Chen , Yiping Wang , Hui Xing , Wei Zhao , Geng Zhang , Siqi Shi . Inhibiting Dendrite Growth by Customizing Electrolyte or Separator to Achieve Anisotropic Lithium-Ion Transport: A Phase-Field Study. Acta Physico-Chimica Sinica, 2024, 40(3): 2305053-0. doi: 10.3866/PKU.WHXB202305053

Get Citation

PDF

XML

Metrics

PDF Downloads(4)
Abstract views(508)
HTML views(73)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142