Identification of triacylglycerols in coix oil by high performance liquid chromatography-atmospheric pressure chemical ionization-mass spectrometry.
- Author:
Zhi-Min XIANG
1
;
Ming ZHU
;
Bi-Lian CHEN
;
Yong CHEN
Author Information
- Publication Type:Journal Article
- MeSH: Chromatography, High Pressure Liquid; methods; Coix; chemistry; Mass Spectrometry; methods; Plant Oils; chemistry; Plants, Medicinal; chemistry; Quality Control; Seeds; chemistry; Triglycerides; analysis; chemistry; isolation & purification
- From: China Journal of Chinese Materia Medica 2005;30(18):1436-1438
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo identify triacylglycerols in coix oil.
METHODHigh performance liquid chromatography-atmospheric pressure chemical ionization-mass spectrometry was used for identification. The experiment was operated under the conditions: spray voltage at 3 000 V, capillary temperature at 250 degrees C, APCI vaporizer temperature at 400 degrees C, and corona current of 4 microA. Sheath gas pressure (high purity liquid nitrogen) was 35 kPa. Mass spectra were obtained over the m/e range of 300 to 900 amu, scan duration of 1s and Q1 peak width at 0.7. The stationary phase was Zorbax Extend C18 column (4.6 mm x 250 mm, 5 microm). The mobile phase: dichloromethane-acetonitrile (35:65), flow rate: 1 mL x min(-1); column temperature: 25 degrees C.
RESULT12 triacylglycerols were identified by HPLC-MS method.
CONCLUSIONThe result can be used to identify the components in a fingerprint chromatogram of coix oil and its related injection product.
