QUALITATIVE AND QUANTITATIVE COLORIMETRIC DETERMINATION OF HEPTOSES

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Qualitative and quantitative colorimetric determination of heptoses.

All heptoses produce with orcinol in dilute HCl two characteristic colored compounds which differ greatly in their absorption spectra. Three different modifications of this reaction were found useful. Procedure i--To 2 cc. of a solution containing 20 to 100 y per cc. of ketoheptose or 5 times as much of an aldoheptose is added 0.4 cc. of concentrated HCl, sp. gr. 1.19, in a test-tube with a gro...

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Qualitative and Quantitative Colorimetric

All heptoses produce with orcinol in dilute HCl two characteristic colored compounds which differ greatly in their absorption spectra. Three different modifications of this reaction were found useful. Procedure i--To 2 cc. of a solution containing 20 to 100 y per cc. of ketoheptose or 5 times as much of an aldoheptose is added 0.4 cc. of concentrated HCl, sp. gr. 1.19, in a test-tube with a gro...

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ژورنال

عنوان ژورنال: Journal of Biological Chemistry

سال: 1953

ISSN: 0021-9258

DOI: 10.1016/s0021-9258(18)66101-0