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Journal of Tea Science ›› 2011, Vol. 31 ›› Issue (2): 124-128.doi: 10.13305/j.cnki.jts.2011.02.008

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Determination of Nicotinic Acid in Tea Leaves by HPLC

PEI Ting   

  1. Inspection Centre of Industry Product of JiangSu Entry-Exit Inspection and Quarantine Bureau ofThe People’s Republic of China, Nanjing 210001, China
  • Received:2010-06-07 Revised:2010-12-30 Online:2011-04-15 Published:2019-09-06

Abstract: A method to measure nicotinic acid by high performance liquid chromatography was investigated in this work. Method: using Agilent 1100 HPLC series, C18 column (4.6mm×150mm), mobile phase of MeOH∶0.05mol/L KH2PO4 (1∶9), with flow rate of 1.0mL/min, and the detection wavelength at 266nm. The nicotinic acid curve was linear with R2=0.9915. The average recovery rate for Nicotinic acid was 99.38% with RSD 2.18%(n=4). Conclusion: the method is simple and has good reproducibility. It coulde be used for analysis of nicotinic acid in tea leaves.

Key words: HPLC, tea leaves, nicotinic acid, content

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