Chinese Journal of Magnetic Resonance ›› 2016, Vol. 33 ›› Issue (3): 415-421.doi: 10.11938/cjmr20160306

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Quantitative Analysis of Active Ingredients in Compound Acetylsalicylic Acid Tablets by DOSY

WANG Li-min1, QIU Ru-chen1, HUANG Shao-hua2   

  1. 1. School of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;
    2. Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
  • Received:2015-10-08 Revised:2016-07-10 Online:2016-09-05 Published:2016-09-05

Abstract:

Compound acetylsalicylic acid tablet is a clinical drug having antipyretic, analgesic and anti-inflammatory effects. The present methods to analyze the active ingredients in this drug have many disadvantages. In this study, we used polydimethylsiloxane (PDMS)-assisted diffusion ordered NMR spectroscopy (DOSY), DOSY-correlated spectroscopy (COSY), and relative quantitative 1H NMR techniques to analyze the three main active ingredients in this drug. The content ratios among the 3 components could be obtained. It is argued that PDMS-assisted DOSY provides a convenient and efficient method for pharmaceutical quality control of compound acetylsalicylic acid tablets.

Key words: acetylsalicylic acid, pharmaceutical quality control, NMR, DOSY, polydimethylsiloxane (PDMS)

CLC Number: