LIAN Hai-xian,WANG Fan,DENG Lei,et al.Determination of Eleven Odorous Compounds in Water by Headspace Solid Phase Microextraction Coupled with Gas Chromatography-Mass Spectrometry[J].China Water & Wastewater,2021,37(20 20):133.
Determination of Eleven Odorous Compounds in Water by Headspace Solid Phase Microextraction Coupled with Gas Chromatography-Mass Spectrometry
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
20 20
Page:
133
Column:
Date of publication:
2021-10-17
- Keywords:
- headspace solid phase microextraction; gas chromatography-mass spectrometry; odorous compounds
- Abstract:
- A method for determination of eleven odorous compounds such as 2-methylisoborneol, geosmin, 2-isopropyl-3-methoxypyrazine, 2-isobutyl-3-methoxypyrazine, 4-chloroanisole, 2,4,6-trichloroanisole, 2,4,6-tribromoanisole, 2-tert-butylphenol, 4-tert-butylphenol, 4-butylphenol and 2,4-di-tert-butylphenol in water was developed by using headspace solid phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). The effects of solid phase microextraction coating, dosage of sodium chloride, extraction time, extraction temperature and oscillation speed on the extraction performance were investigated. The optimal extraction performance of the eleven odorous compounds was obtained when the operational parameters were as follows: solid phase microextraction coating of 50/30 μm DVB/CAR/PDMS, dosage of sodium chloride of 3.5 g sodium chloride per 10 mL samples, extraction temperature of 70 ℃, oscillation speed of 400 r/min and extraction time of 30 min. Under the optimal conditions, the eleven odorous substances had good linearity. The limits of detection were in the range of 0.70-23.2 ng/L, the recovery rates were in the range of 75.0%-111%, and the relative standard deviations were in the range of 4.1% to 12.1%. The method is simple, rapid and sensitive, and is suitable for the determination of the eleven odorous substances in the water body.
Last Update:
2021-10-17