Simultaneous Determination of 11 Odorants in Drinking Water by Liquid-Liquid Extraction/Gas Chromatography-Quadrupole Electrostatic Field Orbitrap Mass Spectrometry
Experimental Techniques and Methods|更新时间:2025-10-14
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Simultaneous Determination of 11 Odorants in Drinking Water by Liquid-Liquid Extraction/Gas Chromatography-Quadrupole Electrostatic Field Orbitrap Mass Spectrometry
Journal of Instrumental AnalysisVol. 44, Issue 7, Pages: 1399-1405(2025)
DU Ming-yue,ZHAN Wei,CHEN Zhe,ZHANG Yong-xin,ZHANG Jing.Simultaneous Determination of 11 Odorants in Drinking Water by Liquid-Liquid Extraction/Gas Chromatography-Quadrupole Electrostatic Field Orbitrap Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(07):1399-1405.
DU Ming-yue,ZHAN Wei,CHEN Zhe,ZHANG Yong-xin,ZHANG Jing.Simultaneous Determination of 11 Odorants in Drinking Water by Liquid-Liquid Extraction/Gas Chromatography-Quadrupole Electrostatic Field Orbitrap Mass Spectrometry[J].Journal of Instrumental Analysis,2025,44(07):1399-1405. DOI: 10.12452/j.fxcsxb.241126558.
Simultaneous Determination of 11 Odorants in Drinking Water by Liquid-Liquid Extraction/Gas Chromatography-Quadrupole Electrostatic Field Orbitrap Mass Spectrometry
A highly sensitive determination method capable of rapidly analyzing 11 common odorants in drinking water was successfully established using liquid-liquid extraction and gas chromatography-quadrupole electrostatic field orbitrap mass spectrometry(GC-Orbitrap-MS). Four different scanning modes,GC gradient elution and other mass parameters were thoroughly investigated. Under the optimal conditions,the standard curves of all target substance
s showed good linearity with correlation coefficients(
r
²) greater than 0.99. The method detection limits were between 0.1 and 2.0 ng·L
-1
,and the quantitation limits were between 0.4 and 6.7 ng·L
-1
. Recoveries of the target odorants at three spiking levels in tap water samples ranged from 76.1% to 120%,with relative standard deviations(
n
=6) of 4.1%-18%. The established method was applied to analyze 17 source water samples and 44 terminal water samples collected from Beijing.Results showed that all target odorants were detected except for 2-methoxy-3,5-dimethylpyrazine and 2,4,6-trichloroanisole. This method is accurate and sensitive and may provide technical support for drinking water monitoring and relevant incidents responding.
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