Application of ICP Atomic Emission Spectrometry forTests of Barium in Food Color Aluminum Lakes

Susumu ISHIMITSU; Mika UMEMOTO; Ikuko MISHIMA; Sumiko TSUJI; Tadashi SHIBATA

doi:10.3358/shokueishi.37.5_325

Susumu ISHIMITSU, Mika UMEMOTO, Ikuko MISHIMA, Sumiko TSUJI, Tadashi SHIBATA

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Keywords: food color aluminum lakes, ICP atomic emission spectrometry, barium, nitric acid

JOURNALS FREE ACCESS

Volume 37 (1996) Issue 5 Pages 325-328_1

DOI https://doi.org/10.3358/shokueishi.37.5_325

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Abstract

ICP atomic emission spectrometry was applied for determination of barium (Ba) in food color aluminum (Al) lakes. Ba in food color Al lakes is in an insoluble form, but could be dissolved by adding nitric acid. The recovery of Ba from food color Al lakes at the level of 1mg/100mg was 92.6-97.4%, with high precision. Contents of Ba in Japanese commercial Al lakes were found to range from 18.5 to 21.6μg/g.

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