PT  - JOURNAL ARTICLE
AU  - V. L. Singleton
AU  - Joseph A. Rossi, Jr.
TI  - Colorimetry of Total Phenolics with Phosphomolybdic-Phosphotungstic Acid Reagents
AID  - 10.5344/ajev.1965.16.3.144
DP  - 1965 Jan 01
TA  - American Journal of Enology and Viticulture
PG  - 144--158
VI  - 16
IP  - 3
4099  - http://www.ajevonline.org/content/16/3/144.short
4100  - http://www.ajevonline.org/content/16/3/144.full
SO  - Am J Enol Vitic.1965 Jan 01; 16
AB  - Several details of the assay of total phenolic substances have been investigated and an improved procedure developed. The improvements include the use of Folin-Ciocalteu reagent rather than the Folin-Denis reagent, gallic acid as a reference standard, and a more reproducible time-temperature color development period. The values obtained are less subject to variation and interference from several nonphenols, yet are directly comparable to the "tannin" values obtained by the previously standard method.