GUO Xiao-na, CHEN Wen, ZHANG Hua, et al. Determination of Three Irritant Constituents of Cappers spinoza with Capillary Gas Chromatography by Using Internal Standard Method[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(16): 66-69.
GUO Xiao-na, CHEN Wen, ZHANG Hua, et al. Determination of Three Irritant Constituents of Cappers spinoza with Capillary Gas Chromatography by Using Internal Standard Method[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(16): 66-69. DOI: 10.13422/j.cnki.syfjx.2012.16.071.
Objective:A capillary gas chromatographic method for the simultaneous determination of three irritant constituents(isopropyl isothiocyanate
methyl isothiocyanate
isobutyl isothiocyanate) in Cappers spinoza was developed.Method: The essential oil was extracted by steam distillation.Butyl isothiocyanate was selected as the internal standard substance.The contents of three irritant components was analyzed by gas chromatography using a TM-FFAP capillary column and a flame ionization detector.The retention time of the peak was applied for qualitative analysis
and the internal standard method was used for quantitative analysis.Result: Three components were well separated in 46 min.There were good linear relationships between peak area ratio on the mass concentration and correlation coefficents above 0.999 1.The average recoveries for the added standards and the RSD were 85.9%-104% and 2.44%-3.12%
respectively.Conclusion: This method is simple and accurate for the irritation determination of volatile substances of C.Spinoza.