01306naa a2200313 a 450000100080000000500110000800800410001910000210006024501100008126000090019152005070020065000160070765000110072365000170073465000100075165000120076165000080077365000100078165000190079165300120081065300130082265300120083565300130084765300120086065300130087265300090088570000240089477300740091811305152019-07-01       1965    bl ---       0--  u    #d1 aSINGLETON, V. L.  aColorimetry of total phenolics with phosphomolybdic-phosphotungotic acid reagents.h[electronic resource]  c1965  aSeveral 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 tanni values obtained by the previously standard method.  acolorimetry  agrapes  aColorimetria  aFenol  aMétodo  aUva  aVinho  aVitis Vinifera  aContent  aConteudo  aMethods  aPhenolic  aReagent  aReagente  aWine1 aROSSI JUNIOR, J. A.  tAmerican Journal of Enology and Viticulturegv. 16, p. 144-158, 1965.