A Quantitative NMR Method to Analyze Vitamin B1, Vitamin B2, Nicotinamide and Calcium Pantothenate Contents in Compound Vitamin B Tablets
GUO Qiang-sheng, LIU Ming-ke, YU Shan, SHEN Ting-ting, SONG Wei, XU Xu
Chinese Journal of Magnetic Resonance . 2016, (3): 442 -451 .  DOI: 10.11938/cjmr20160309

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