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제107회 대한화학회 학술발표회, 총회 및 기기전시회 안내 A study on the determination of total arsenic and arsenic species in seaweed samples by ion chromatography coupled with inductively coupled plasma - atomic emission spectrometry

2011년 2월 24일 16시 50분 52초
Ⅳ-ANAL.P-128 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
금 <발표Ⅳ>
저자 및
나진수, CUI SHENG, 남상호
목포대학교 화학과, Korea
Chemical speciation of an element involves quantitative determination of the different chemical forms. The chemical speciation of elements has been very critical because their bioactivity and toxicity relys on the different chemical forms of elements in various samples. The quantitation of the total arsenic in seaweeds has routinely been performed. But, it has been very well known that toxicity and biological effect depend not only on the total concentration of arsenic but also on the chemical species of arsenic in sample. Of the chemical species of arsenic, inorganic arsenic As3+ and As5+ are highly toxic. Therefore, the importance on research of arsenic species has greatly increased. It is necessary to develop the analytical method of arsenic species because the oxidation states of arsenic species should not be converted into each other during sample preparation. This study has been focused on the sample preparation and the analytical method of total arsenic and inorganic arsenic in several seaweeds (laver, green laver, sea tangle and sea mustard) by ICP-AES (Inductively Coupled Plasma - Atomic Emission Spectrometer). The analytical method of arsenic species (As3+, As5+, MMA and DMA) using IC (Ion Chromatography) coupled with ICP-AES was also investigated.