| 傅里叶变换红外光谱法测定白酒中乙醇含量 |
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| 引用本文： | 余丽娟,郑建明,朱文雷.傅里叶变换红外光谱法测定白酒中乙醇含量[J].广州化工,2011,39(4):112-113,128. |
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| 作者姓名： | 余丽娟 郑建明 朱文雷 |
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| 作者单位： | 江苏天瑞仪器股份有限公司,江苏,昆山,215300 |
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| 摘 要： | 建立快速测定酒精饮品中乙醇含量的衰减全反射-傅里叶变换红外光谱（ATR-FTIR）法,以ZnSe槽行板为ATR晶体,以水为背景采集样品的FTIR图。以1 044 cm-1的C-OH伸缩振动为特征峰,用峰面积表示整个吸光度以消除尖峰干扰,建立了其线性关系数0.998 6,乙醇水溶液的检测限为0.2%。该方法准确、方便、快速,适用于酒精饮品中乙醇含量的快速测定。
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| 关 键 词： | 傅里叶变换红外光谱 衰减全反射 乙醇 酒精饮品 |
Determination of Ethanol in Alcohol by Fourier Transform Infrared Spectroscopy |
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| YU Li-juan,ZHENG Jian-ming,ZHU Wen-lei.Determination of Ethanol in Alcohol by Fourier Transform Infrared Spectroscopy[J].GuangZhou Chemical Industry and Technology,2011,39(4):112-113,128. |
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| Authors: | YU Li-juan ZHENG Jian-ming ZHU Wen-lei |
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| Affiliation: | (Jiangsu Skyray Instrument Co.,Ltd.,Jiangsu Kunshan 215300,China) |
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| Abstract: | The rapid determination of ethanol content in alcohol was established by attenuated total reflection-Fourier Transform Infrared Spectroscopy(ATR-FTIR) with ZnSe slot for the ATR crystals and water for the background sample.With the peak at 1 044cm-1 specified as the characteristic stretching vibration of C-OH,and the area of the peak as the total absorption to eliminate peak interference,the linear correlation coefficient and detection limit of aqueous alcohol was 0.998 6 and 0.2%,respectively.This method was accurate,convenient and applicable to the rapid determination of ethanol in alcohol. |
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| Keywords: | fourier transform infrared spectrum attenuated total reflection ethanol alcohol |
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