Comparison of vitamin C concentrations in dark colour fruits and vegetables detected by automatic potentiometric titration and HPLC method

GAN Zhen-wei，WU Guang-heng，LIU Guo-liang，ZHANG Ya-jie，XU Kun， XIE Lin，GAN Lu

Journal of Jilin University(Medicine Edition) . 2014, (02): 441 -445 . DOI: 10.13481/j.1671-587x.20140244