| 光谱学与光谱分析 |
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| Spectrophotometric Method for the Determination of Water in Organic Solvents |
| LI Gui-zhi，LIU Yong-ming |
| College of Chemistry, Yantai University，Yantai 264005, China |
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Abstract In the presence of a small amount of water, the chloranilic acid was disassociated. The absorption peak was bathochromic-shifted and the absorption intensity dramatically enhanced. Based on this fact, a spectrophotometric method was developed for determining water in many kinds of organic solvents. The mechanism and conditions for the determination were studied thoroughly. The water in alcohol samples (white wine, food alcohol and reagent alcohol) was detected with satisfactory results. The method was simple, sensitive and of good reproducibility. The linear range was φ(H2O) 0.02%～10% in alcohol. The method was also used for the determination of water in other organic solvents such as methanol, 2-propanol, acetone, butanone, acetonitrile and tetrahydrofuran, and the calibration curves were obtained, respectively.
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Received: 2002-07-22
Accepted: 2002-12-08
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Corresponding Authors:
LI Gui-zhi
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| Cite this article: |
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LI Gui-zhi,LIU Yong-ming. Spectrophotometric Method for the Determination of Water in Organic Solvents [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(01): 122-124.
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| URL: |
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http://www.gpxygpfx.com/EN/Y2004/V24/I01/122 |
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