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학술발표회초록보기

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제108회 대한화학회 학술발표회, 총회 및 기기전시회 안내 An investigation on the extraction and determination of arsenic species and inorganic arsenic species in seaweed

등록일
2011년 8월 1일 14시 31분 15초
접수번호
1123
발표코드
Ⅳ-ANAL.P-197 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅳ>
발표형식
포스터
발표분야
분석화학
저자 및
공동저자
CUI SHENG, 나진수, 남상호
목포대학교 화학과, Korea
The chemical speciation of elements has been very critical because their bioactivity and toxicity rely on the different chemical forms of elements in various samples. But the quantitation of species of elements in samples is much more difficult than that of total amount because each of the species can be transformed by a variety of factors in the process of pretreatment, such as pH, temperature and matrix. In this study, total arsenic and inorganic arsenic in seaweeds have been determined by ICP - AES (Inductively Coupled Plasma - Atomic Emission Spectrometer). We have also focused on the development of the analytical method for the determination of arsenic species. While various extraction methods (nitric acid, water and methanol extraction method) of the arsenic species have been investigated, it was found that the chemical forms were converted during the process of the sample preparation. Thus, the reason of the instability of arsenic species has also been investigated.

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