抄録
A method for the determination of bromine in food products by ion chromatography was developed. Three grams of sample was ashed in alkaline solution in a nickel crucible at 500°C. The ashed residue dissolved in deionized water was filtrated through a membrane filter and the filtrate was applied to ion chromatography. The eluted ions were monitored at 193 nm with a spectrophotometric detector. A chloride ion in 4500 fold excess had no interfering effect on the determination of a bromide ion. The recoveries from food products examined were 90.0-102%. The determination limit was 0.5 μg/g in food. The proposed method was found to be efficient for the determination of total bromine in foods.
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