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Spectrophotometric method for the quantitative analysis of trinitromethyl compounds

โœ Scribed by D.J. Glover

Publisher
Elsevier Science
Year
1963
Tongue
French
Weight
783 KB
Volume
19
Category
Article
ISSN
0040-4020

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โœฆ Synopsis

Alkaline hydrogen peroxide rapidly and quantitatively reduces trinitromethyl compounds except esters of trinitroethanol, to the corresponding I, l-dinitro anion. Esters of trinitroethanol and 2,2-dinitroalcohols are saponified and demethylolated quantitatively to trinitromethyl and 1,I-dinitro anions, respectively.

The intense near ultraviolet absorption of these ions affords a ready method of analysis for a variety of structures.

The mechanisms of the reactions are discussed.

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โœ Marcello Marotta; Guglielmo Martino ๐Ÿ“‚ Article ๐Ÿ“… 1985 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 339 KB

A method to estimate collagen concentration is described. It is based on the ability of the dye Sirius Red F3BA to quantitatively precipitate collagen in acetic acid solution. Collagen content is determined by evaluating spectrophotometrically the absorbance decrease of a Sirius Red/acetic acid solu