| 光谱学与光谱分析 |
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| Determing Mole Ratio of Monomers in New Adsorbent of Solid-phase Microextraction by Infrared Spectroscopy |
| WANG Wen-bo, SHEN Shu-chang, AN Hong, SHI Xiang-chun |
| School of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar161006, China |
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Abstract In the present paper, butyl acrylate and phenylethylene were used as monomers, benzoyl peroxide as evocator, n-butyl acetate and methylbenzene as solvent, a new type of solid-phase micro extraction adsorbent that is phenylethylene-butyl acrylate copolymer was synthesized by solution polymerization. The polymer has good behaviour for adsorbing arenas. According to Lambert-Beer law and some calculation process, the linear relation between the absorptance (y) of the two functional groups, which are benzene and ester, and the two monomers’ mole ratio (x) was obtained. The absorptances were determined by IR. The standard curve was obtained by external standard method. The linear regression equation is y＝0.136 2+0.084 1x. The precisions and recoveries were investigated. RSD is 2.464%, and recoveries are 92.89%-103.94%. The results are satisfactory. This method is rapid and accurate.
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Received: 2002-08-31
Accepted: 2003-01-16
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Corresponding Authors:
WANG Wen-bo
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| Cite this article: |
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WANG Wen-bo,SHEN Shu-chang,AN Hong, et al. Determing Mole Ratio of Monomers in New Adsorbent of Solid-phase Microextraction by Infrared Spectroscopy [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(01): 59-61.
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| URL: |
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http://www.gpxygpfx.com/EN/Y2004/V24/I01/59 |
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