TY - Journal of Yangtze River Scientific Research Institute A1 - WANG Hai-Yun, LI Min-Rui, LIAO Tao, TAN Fei-Fan, DENG Jie T1 - Influence of pH Value on the Determination of Hexavalent Chromium by Diphenylcarbazide Spectrophotometry Y1 - 2012-09-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 22 EP - 26 VL - 29 IS - 9 UR - http://ckyyb.crsri.cn N1 - 10.3969/j.issn.1001-5485.2012.09.006 ER -