Determination of oxalic acid in vitamin complex injection by HPLC
LI Zhiwei,XIA Jin,HE Qingguo,ZHAO Lirong,LI Xiao
Journal of Hebei University (Natural Science Edition) . 2015, (3): 253 -257 .  DOI: 10.3969/j.issn.1000-1565.2015.03.006