Chinese Journal of Chromatography ›› 2016, Vol. 34 ›› Issue (10): 964-967.DOI: 10.3724/SP.J.1123.2016.05020

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Determination of β-glycerophosphate and L-malate in glycerol phosphate preparations by ion chromatography

LIU Yuxiu, YU Hongwei   

  1. Lab of Competence Center, Metrohm China Limited, Beijng 100101, China
  • Received:2016-07-04 Online:2016-10-08 Published:2013-04-03

Abstract:

An analytical method for the determination of β-glycerophosphate and L-malate in glycerol phosphate preparations was established by ion chromatography with isocratic elution. α -Glycerol phosphate was completely separated from β-glycerol phosphate in the glycerol phosphate preparations. A Metrosep A Supp7 column (250 mm×4.0 mm, 5 μm) was used for separation with the eluent of 3.6 mmol/L Na2CO3 at a flow rate of 0.7 mL/min. The column temperature was 35℃. With this method, good accuracy and precision were obtained. The recoveries of the method ranged from 90.73% to 106.27%. The method is simple, rapid, sensitive, and suitable for the determination of β-glycerophosphate and L-malate in glycerol phosphate preparations.

Key words: β-glycerophosphate, glycerol phosphate preparations, ion chromatography (IC), L-malate

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