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| 搅拌棒萃取-热脱附/气质联用法测定水中2-MIB和土臭素 |
| etermination of2Methylisoborneol and Geosmin in Water Using Stir Bar Sorptive Extraction Thermal Desorption/Gas Chromatography Coupled with Mass Spectrometry |
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| DOI： |
| 中文关键词: 2-甲基异莰醇 土臭素 搅拌棒萃取 气质联用法 水质 |
| 英文关键词: 2Methylisoborneol Geosmin Stir bar sorptive extraction(SBSE) Gas chromatography coupled with mass spectrometry Water quality |
| 基金项目:苏州市社会发展科技支撑基金资助项目（SS201243） |
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| 中文摘要: |
| 采用搅拌棒萃取-热脱附/气质联用法测定水中2-甲基异莰醇和土臭素，优化了搅拌棒萃取和热脱附进样的条件。试验表明：两种目标化合物在1.00 ng/L～200 ng/L范围内线性良好，2-甲基异莰醇的相关系数为0.999 3，土臭素的相关系数为0.999 7，方法检出限分别为0.31 ng/L和0.15 ng/L；空白和实际样品的加标回收率为82.4%～116%，测定结果的RSD<10%。 |
| 英文摘要: |
| A method using stir bar sorptive extraction(SBSE) thermal desorption(TD)/ gas chromatography coupled with mass spectrometry(GCMS) was developed to determinate ultra trace level of 2 methylisoborneol(2 MIB) and geosmin in water. SBSE and TD parameters were optimized through blank spiked sample. The method showed good linearity(r>0.999) over concentration range from 1 ng/L to 200 ng/L and high sensitivity (the MDL of 2 MIB and geosmin were
0.31 ng/L and 0.15 ng/L respectively). The spiked recovery of blank and real samples ranged from 82.4% to 116% with RSD <10%. |
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