中国资源综合利用2024，Vol.42Issue(6)：39-42,4.DOI:10.3969/j.issn.1008-9500.2024.06.010
固相萃取-气相色谱质谱法测定水中土霉味物质的试验研究
Experimental Study on the Determination of Earthy-Musty Odorants in Water by Solid Phase Extraction-Gas Chromatography and Mass Spectrometry
摘要
Abstract
Earthy-musty odor is the most common type of odor in drinking water in China,with Geosmin(GSM)and 2-Methylisoborneol(2-MIB)being the main substances causing the odor.The experiment uses solid phase extraction-gas chromatography and mass spectrometry to determine the earthy-musty odorants GSM and 2-MIB in water,and determines the optimal extraction conditions by optimizing key parameters such as extraction column,elution solvent,elution volume,and extraction rate.The extraction liquid is separated by a chromatographic column and quantified by using internal standard method under the selected ion monitoring mode.The results show that when the concentration is between 2.5～100.0 μg/L,the peak areas of GSM and 2-MIB have a good linear relationship with mass concentration(correlation coefficient r＞0.999),the detection limits of the method are 0.50 ng/L and 0.66 ng/L,respectively,and the spiked recovery rate is 91.1%～95.7%,this method is suitable for the determination of GSM and 2-MIB in drinking water sources and algae outbreak water bodies.关键词
固相萃取/气相色谱质谱法/土霉味物质/土臭素(GSM)/2-甲基异茨醇(2-MIB)Key words
solid phase extraction/gas chromatography and mass spectrometry/earthy-musty odorants/Geosmin(GSM)/2-Methylisoborneol(2-MIB)分类
化学化工引用本文复制引用
茹赛红,张昆,蒋艳萍,吴斌斌,罗瑶,吴银菊..固相萃取-气相色谱质谱法测定水中土霉味物质的试验研究[J].中国资源综合利用,2024,42(6):39-42,4.基金项目
湘江长沙段干流及支流(浏阳河)水生态环境监测调查. （浏阳河）
