ガスクロマトグラフィーによる衣類中の遊離ホルムアルデヒドの微量分析

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Microdetermination of free formaldehyde in commercial clothes by gas chromatography. Keiko KOBAYASHI, Mitsuyoshi OKAMOTO and Satoshi KAWAI (Gifu College of Pharmacy, 5-6-1, Mitahora-Higashi, Gifu-shi, Gifu; Gifu Prefectural Institute of Public Health, 4-6-3, Noishiki, Gifu-shi, Gifu) A gas chromatographic method was developed for the trace determination of free formaldehyde in commercial clothes. Pentafluorobenzyloxylamine (PFBOA) hydrochloride was used as a novel derivatizing reagent. About 0.5 g of finely chopped clothes was taken in a 50 ml flask and free formaldehyde in the sample was extracted with 25 ml of water by shaking the flask frequently in water bath at 40 ℃ for 1 h. To a 5 ml aliquot of the sample solution obtained, 0.5 ml of PFBOA・HG1 aqueous solution (1.0 mg/ml) was added and the mixture was allowed to stand at room temperature for 40 min. After the mixture was saturated with sodium chloride and acidified with 2 drops of 1 N sulfuric acid, pentafluorobenzyloxime (PFBO) of formaldehyde was extracted with 0.3 ml of hexane containing PFBO of acetone as an internal standard for FID-GG or EGD-GC. (Received Aug. 15, 1980)
社団法人日本分析化学会の論文
1981-01-05