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Automated colorimetric determination of hippuric acid in human urine

โœ Scribed by Isamu Kaneko; Tsuyoshi Miura; Tatsuro Hirao; Masayuki Ikeda

Book ID
105327370
Publisher
Springer-Verlag
Year
1975
Tongue
English
Weight
363 KB
Volume
35
Category
Article
ISSN
0340-0131

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Simple colorimetric semiquantitation method of hippuric acid in urine for demonstration of toluene abuse
โœ Manabu Yoshida; Atsushi Akane; Tomoaki Mitani; Toshimitsu Watabiki ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 124 KB

A semiquantitative method for hippuric acid in toluene sniffers' urine was explored by modifying the method by Tomokuni and Ogata. The color of sample urine mixed with pyridine and benzenesulfonyl chloride was yellow, and became reddish by addition of distilled water. Using the color chart, the conc