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The gas chromatographic determination of humectants
Author(s) -
CHAMBERS N.,
CROPPER E.,
PUTTNAM N. A.
Publication year - 1979
Publication title -
international journal of cosmetic science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 62
eISSN - 1468-2494
pISSN - 0142-5463
DOI - 10.1111/j.1467-2494.1979.tb00213.x
Subject(s) - chromatography , chemistry , borax , acetic anhydride , boric acid , acetic acid , sorbitol , gas chromatography , glycerol , pentaerythritol , organic chemistry , raw material , fire retardant , catalysis
Synopsis A rapid gas chromatographic method is described for the simultaneous determination of glycerol, sorbitol or mannitol in a variety of raw materials or finished products. The method is based upon the direct conversion, normally without predrying, of sample humectants into their acetate derivatives by bomb reaction with acetic anhydride in the presence of pentaerythritol added as internal standard. The resultant acetates are determined by g.l.c.; a complete determination requires about 30 min. The method, as described, is not applicable to samples containing borax or boric acid derivatives. Le dosage d'humectants par chromatographie en phase gazeus