Determination of Ethanol in Gasoline by FT-IR Spectroscopy

被引：32

作者：

Conklin, Alfred, Jr. ^{[1
]}

Goldcamp, Michael J. ^{[1
]}

Barrett, Jacob ^{[1
]}

机构：

[1] Wilmington Coll, Dept Chem, Wilmington, OH 45177 USA

来源：

JOURNAL OF CHEMICAL EDUCATION | 2014年 / 91卷 / 06期

关键词：

First-Year Undergraduate/General; Laboratory Instruction; Organic Chemistry; Hands-On Learning/Manipulatives; Alcohols; Alkanes/Cycloalkanes; IR Spectroscopy; Quantitative Analysis;

D O I：

10.1021/ed400824g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ethanol is the primary oxygenate in gasoline in the United States. Gasoline containing various percentages of ethanol is readily available in the market place. A laboratory experiment has been developed in which the percentage of ethanol in hexanes can easily be determined using the O-H and alkane C-H absorptions in an infrared spectrum. Standard solutions of ethanol mixed with hexanes are prepared, and their infrared spectra collected. The areas under the O-H and C-H absorptions are used to prepare a standard curve, which is used to determine the percentage of ethanol. Results for the analysis of ethanol in gasoline from this model ethanol/hexanes calibration system compare favorably to advertised values, as well as to values determined by water extraction.

引用

页码：889 / 891

页数：3

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