Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Quantification of Arsenic Species in Some Seafood by HPLC-AFS

HPLC-AFS를 이용한 해산물 중 비소 화학종 분리정량

  • Jeong, Seung-Woo (Department of ICT Environmental Health System, Soonchunhyang University) ;
  • Lee, Chae-Hyeok (Department of Environmental Health Science, Soonchunhyang University) ;
  • Lee, Jong-Wha (Department of Environmental Health Science, Soonchunhyang University) ;
  • Jang, Bong-Ki (Department of Environmental Health Science, Soonchunhyang University)
  • 정승우 (순천향대학교 ICT환경보건시스템학과) ;
  • 이채혁 (순천향대학교 환경보건학과) ;
  • 이종화 (순천향대학교 환경보건학과) ;
  • 장봉기 (순천향대학교 환경보건학과)
  • Received : 2021.08.26
  • Accepted : 2021.10.20
  • Published : 2021.10.31
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Abstract

Background: Considering the expenses of and difficulties in arsenic speciation by high performance liquid chromatography-inductively coupled plasma-mass spectrometry (HPLC-ICP-MS), alternative measurement methods should be useful, especially for large-scale research and projects. Objectives: A measurement method was developed for arsenic speciation using HPLC-atomic fluorescence spectrometry (HPLC-AFS) as an alternative to HPLC-ICP-MS. Methods: Total arsenic and toxic arsenic species in some seafoods were determined by atomic absorption spectrometry coupled with hydride vapor generation (AAS-HVG) and HPLC-AFS, respectively. Recovery rate of arsenic species in seafood was evaluated by ultra sonication, microwave and enzyme (pepsin) for the optimal extraction method. Results: Limits of detection of HPLC-AFS for As3+, dimethylarsinate (DMA), monomethylarsonate (MMA) and As5+ were 0.39, 0.53, 0.60 and 0.64 ㎍/L, respectively. The average accuracy ranged from 97.5 to 108.7%, and the coefficient of variation was in the range of 1.2~16.7%. As3+, DMA, MMA and As5+ were detected in kelp, the sum of toxic arsenic in kelp was 40.4 mg/kg. As3+, DMA, MMA and As5+ were not detected in shrimp and squid, but total arsenic (iAS and oAS) content in shrimp and squid analyzed by AAS-HVG were 18.1 and 24.7 mg/kg, respectively. Conclusions: HPLC-AFS was recommendable for the quantitative analysis method of arsenic species. As toxic arsenic species are detected in seaweeds, further researches are needed for the contribution degree of seafood in arsenic exposure.

Keywords

Acknowledgement

이 연구는 2009년 순천향대학교 교수연구년제에 의하여 수행되었습니다.

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