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- W4229605762 abstract "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 0.5g of finely chopped clothes was taken in a 50 ml flask and free formaldehyde in the sample was extracted with 25ml of water by shaking the flask frequently in water bath at 40°C for 1 h. To a 5ml aliquot of the sample solution obtained, 0.5ml of PFBOA·HCl aqueous solution (1.0mg/ml) was added and the mixture was allowed to stand at room temperature for 40min. After the mixture was saturated with sodium chloride and acidified with 2 drops of 1N sulfuric acid, pentafluorobenzyloxime (PFBO) of formaldehyde was extracted with 0.3ml of hexane containing PFBO of acetone as an internal standard for FID-GC or ECD-GC." @default.
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- W4229605762 date "1981-01-01" @default.
- W4229605762 modified "2023-09-26" @default.
- W4229605762 title "Microdetermination of free formaldehyde in commercial clothes by gas chromatography." @default.
- W4229605762 doi "https://doi.org/10.2116/bunsekikagaku.30.76" @default.
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