Abstract
AbstractSeveral non-aldehydic components of gelatin (nucleic acids, oses, poly-oses, ...) simulate the action of aldehydes with the two reagents (thiobarbituric acid and 3-methyl-2-benzothiazolone hydrazone) used to determine aldehydes in photographic gelatin. Their interferences are always important and the analyses artificially group under an unadapted name aldehydes (if they actually exist in gelatin) and compounds of various compositions.Under these conditions “aldehyde determinations” in photographic gelatin are rather control operalion than actual analyses.
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