Concentration Detection of Ethanol in HuaiShi Ye by Headspace GC
- VernacularTitle:顶空气相色谱法测定怀氏液中乙醇浓度
- Author:
Liu WEN
;
Yu SHENG
;
Tan BOYU
;
Deng NAN
- Publication Type:Journal Article
- Keywords:
GC;
HuaiShi Ye;
Ethanol
- From:
China Pharmacist
2015;18(12):2200-2202
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a detection method for ethanol in HuaiShi province Ye. Methods:Ethanol in HuaiShi Ye was determined by GC with a DB-ALC1 capillary column(30 m × 0. 53 mm,3. 0 μm), an FID detector and nitrogen as the carrier gas. The injector temperature was 200℃, the detector temperature was 250℃ and the column temperature was 80℃. The flow rate of N2 was 5 ml·min-1 . Tertbutyl alcohol was used as the internal standard, and 1. 0μl sample was injected by a headspace injector. Results:The solvents were completely separated, and the calibration curve of ethanol had good linear relationship within the range of 3. 177 0-15. 885 0 mg(r=0. 999 6), and the recovery was 98. 7%. The intra-day precision of different concentrations was less than 2. 5%. Conclusion:The method is sensitive, rapid, accurate and reliable, and can be used for the determination of ethanol in HuaiShi Ye.
