気体状アクロレインのガスクロマトグラフ定量
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概要
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A method for the determination of gaseous acrolein by gas chromatography with ECD has been developed. Sample gases (3〜40 l) were collected in absorption solution of ethanol at the rate of 0.5 l/min. After 5 ml of the absorption solution was diluted to 25 ml with water, this solution was brominated at pH 2. The excess of bromine was reduced with sodium thiosulfate solution and 4 ml of phosphorous buffer (pH 8) was added. The derivative of acrolein was extracted with 5 ml of ethyl acetate for three times. The extract was made up to 20 ml with ethyl acetate and 5μl of this solution was injected into a gas chromatograph with ECD. The lower limit of determination was about 5 nl/1 at a size of 40 1 of sample gas. The recovery of standard gas was 94% and the relative standard deviation was 8.7% (n=4).
- 社団法人日本分析化学会の論文
- 1985-11-05
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