Spectrophotometric Determination of Protein Content in Milk by Using Pyrogallol Red-Copper(Ⅱ) Complexes
Ma Zhan-ling, Gu Jia-li, Zeng Ling
Food and Fermentation Industries . 2011, (12): 159 -161 .  DOI: 10.13995/j.cnki.11-1802/ts.2011.12.017