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The phenolic substances of manufactured tea. III.—ultra-violet and visible absorption spectra

✍ Scribed by E. A. H. Roberts; D. M. Williams

Publisher
John Wiley and Sons
Year
1958
Tongue
English
Weight
486 KB
Volume
9
Category
Article
ISSN
0022-5142

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## Abstract The ultra‐violet absorption spectrum of a very pure specimen of dehydrothio‐__p__‐toluidine (4′‐amino‐2‐phcnyl‐6‐methyl benzthiazole), which was measured by photographic spectrophotometric technique and redetermined with a Beckman photoelectric spectrophotometer, shows a strong absorpti