ヘッドスペース・ガスクロマトグラフ法による水中臭素イオンの微量分析
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概要
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We investigated an analysis of trace amounts of bromide ion in water by gas chromatography. The recommended procedure is as follows ; a sample (containing more than 0.3 μg of bromide ion) was evaporated to dryness. The remaining bromide reacted with citric acid, potassium permanganate and manganse dioxide in sulfuric acid to form pentabromoacetone, which then turned into bromoform for hydrolysis in haloform reaction. The bromoform was measured by head space gas chromatography (ECD). By this method, bromide ion of 0.3-5.0 μg was determined. The coefficient of variation was 4.3% for 2.0 μg of bromide ion. It had no effect on the determination of bromide ion in the presence of coexisting substances such as chloride. The bromide contained in environmental water samples (sea, river, lake, ground, tap, and rain water) was determined successfully by the proposed method.
- 公益社団法人日本薬学会の論文
- 1987-04-30