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Speciation of Six Arsenic Compounds in Korean Seafood Samples by HPLC-ICP-MS

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Abstract:

Extracts of 33 samples of seaweed, shrimp, fish and shellfish, including two certified reference materials, were investigated for their contents of arsenic compounds (arsenic speciation).An anion exchange high performance liquid chromatography procedure was optimized to separate six arsenic compounds present in the seafood samples with dynamic reaction gas cell by inductively coupled plasma mass spectrometry. The concentration of each species in the sample were: arsenobetaines - 0.019-1.04 mg/kg, arsenocholine - 0.033-69.0 mg/kg, arseniousacid - ND-1.25 mg/kg, dimethylarsinate - ND-3.75 mg/kg, monomethylarsonate - ND-8.33 mg/kg, arsenic acid - ND-0.55 mg/kg. Additionally, unknown arsenic species were present in most of samples. The intake of inorganic arsenic via ingestion of the seafood samples that were analyzed did not represent a toxicological problem to humans. The limits of detection (LOD) were in the range of 0.5-2.5 µg/kg .

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Periodical:

Key Engineering Materials (Volumes 277-279)

Pages:

431-437

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.277-279.431

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Online since:

January 2005

Authors:

Kyung Su Park, Jeong Sook Kim, Hyo Min Lee, Hee Soo Pyo, Soon Tae Kim, Kang Bong Lee

Keywords:

Arsenic, HPLC-ICP-MS, Seafood Samples, Speciation

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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