ZHAO Yun-fang, LU She-ming, LIU Chun-bo, CAO Qiu-e, MIAO Ming-ming. Determination of Coumarin in Teas by GC/MS[J]. Journal of Chinese Mass Spectrometry Society, 2009, 30(增刊): 214-215.
Citation: ZHAO Yun-fang, LU She-ming, LIU Chun-bo, CAO Qiu-e, MIAO Ming-ming. Determination of Coumarin in Teas by GC/MS[J]. Journal of Chinese Mass Spectrometry Society, 2009, 30(增刊): 214-215.

Determination of Coumarin in Teas by GC/MS

  • Coumarin in teas was determined by GC/MS. The teas were extracted with dichloromethane using a sonicator, purified by a Silica column, and determined by GC/MS with selection ion monitoring mode. The result show that the calibration curve of coumarin is linear(R=0.999 8) between 0.05 mg L-1 and 4 mg L-1. The precision is perfect(RSD=2.80%). The average recoveries are from 96.22% to 100.44%. The detection limit is 8 mg L-1. The method is suitable for the quantitative analysis of coumarin in natural products.
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