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KMID : 0380620090410010001
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Korean Journal of Food Science and Technology
2009 Volume.41 No. 1 p.1 ~ p.6
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Arsenic Speciation and Risk Assesment of Hijiki (Hizikia fusiforme) by HPLC-ICP-MS
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Ryu Keun-Young
Shim Sung-Lye
Hwang In-Min
Jung Min-SeoK
Jun Sam-Nyeo
Seo Hye-Young
Park Jong-Seok
Kim Hee-Yeon
Om Ae-Son
Park Kyung-Su
Kim Kyong-Su
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Abstract
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This study investigated arsenic speciation and risk assesment in 30 samples of hijiki purchased fromlocal market in 10 Korean cities. The mean arsenic concentration of the hijiki samples was 45.65mg/kg (dryness;moisture content of 91.1±1.6%), and the major arsenic compound was arsenate [As(V)]. The concentrations ofAs(V) and As(III), as inorganic arsenic compounds, were detected to be 40.36mg/kg and 0.37mg/kg, respectively,and made up 88.6% (40.46mg/kg) of the arsenic in the hijiki. Among the samples, the highest inorganic arsenicconcentration was identified at 9.19 mg/kg (wet), and for an adult with a body weight of 60kg was within anacceptable level as 0.7% (6.43μg/60kg/week) when compared with the provisional tolerable weekly intake (PTWI)(900μg/60kg/week), and would be considered safe with respect to health-hazardous effects.
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KEYWORD
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arsenic speciation, HPLC-ICP-MS, ICP-MS, hijiki (Hizikia fusiforme), risk assesment
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