Determination of major volatile components in suhexiang wan (storax pill) using analytical supercritical fluid extraction (SFE)
Ma, X.Z.; Yu, X.B.; Chen, J.J.; Liang, Z.M.; Coa, T.C.; Wang, Y.
Yao Xue Xue Bao 28(7): 537-542
1993
ISSN/ISBN: 0513-4870 PMID: 8285057 Document Number: 409132
A new method based on the off-time coupling of analytical SFE and GC has been developed for qualitative and quantitative analysis of major volatile components in Suhexiang Wan, a Chinese patent medicine. The factors affecting extraction efficiency were examined to seek the optimal operating parameters. Quantitative recovery (90%) was achieved with 20 ml CO-2 in ca 1 h using a self-designed analytical SFE system. Compared with the conventional methods, the SFE as an alternative technique for sample preparation will be most useful in the quality control of Chinese patent medicine.