Comprehensive quantitative analysis of SQ injection using multiple chromatographic technologies

Siu Leung Chau, Zhi Bing Huang, Yan Gang Song, Rui Qi Yue, Alan Ho, Chao Zhan Lin, Wen Hua Huang*, Simon Q B HAN

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

7 Citations (Scopus)
35 Downloads (Pure)


Quality control of Chinese medicine injections remains a challenge due to our poor knowledge of their complex chemical profile. This study aims to investigate the chemical composition of one of the best-selling injections, Shenqi Fuzheng (SQ) injection (SQI), via a full component quantitative analysis. A total of 15 representative small molecular components of SQI were simultaneously determined using ultra-high performance liquid chromatography (UHPLC) coupled with quadrupole tandem time-of-flight mass spectrometry (Q-TOF-MS); saccharide composition of SQI was also quantitatively determined by high performance liquid chromatography (HPLC) with evaporative light scattering detector (ELSD) on an amino column before and after acid hydrolysis. The existence of polysaccharides was also examined on a gel permeation chromatography column. The method was well validated in terms of linearity, sensitivity, precision, accuracy and stability, and was successfully applied to analyze 13 SQI samples. The results demonstrate that up to 94.69% (w/w) of this injection product are quantitatively determined, in which small molecules and monosaccharide/sucrose account for 0.18%-0.21%, and 53.49%-58.2%, respectively. The quantitative information contributes to accumulating scientific evidence to better understand the therapy efficacy and safety of complex Chinese medicine injections.

Original languageEnglish
Article number1092
Issue number8
Publication statusPublished - 1 Aug 2016

Scopus Subject Areas

  • Analytical Chemistry
  • Chemistry (miscellaneous)
  • Molecular Medicine
  • Pharmaceutical Science
  • Drug Discovery
  • Physical and Theoretical Chemistry
  • Organic Chemistry

User-Defined Keywords

  • Chemical profile
  • Chinese medicine formula
  • Quantitative analysis
  • Shenqi Fuzheng injection


Dive into the research topics of 'Comprehensive quantitative analysis of SQ injection using multiple chromatographic technologies'. Together they form a unique fingerprint.

Cite this