Determination of Free Ethylenediaminetetraacetic Acid in Foods by Titration Using Eriochrome Black T with Visual End-Point Indication.
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概要
- 論文の詳細を見る
A direct titrimetric method for the determination of ethylenediaminetetraacetic acid (free EDTA) in foods is described. Free EDTA was extracted from food samples by equilibrium dialysis using ammonium buffer. An aliquot of dialyzate was subjected to direct titration with standard MgCl<SUB>2</SUB> solution at pH 8.5 using Eriochrome Black T as a metallochromic indicator. The common inorganic ions (PO<SUB>4</SUB><SUP>3</SUP>—, NO<SUB>3</SUB>—, Cl—) and organic acids (citric acid, tartaric acid) in foods do not interfere with the proposed methods.
- 社団法人 日本食品科学工学会の論文
著者
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Hamano Takashi
Public Health Research Institute Of Kobe City
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Mitsuhashi Yukimasa
Public Health Research Institute of Kobe City
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SEMMA Masanori
Faculty of Pharmaceutical Science, Mukogawa Women's University
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ITO Yoshio
Faculty of Pharmaceutical Science, Mukogawa Women's University
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AOKI Nobumi
Public Health Research Institute of Kobe City
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