中红外光谱法快速测定汽油中的乙酸仲丁酯

Determination of Sec-Butylacetate in Gasoline by Mid-Infrared Spectroscopy

运用IR Affinity-1型傅里叶变换红外光谱仪对汽油及乙酸仲丁酯进行扫描,获得不受其它组分干扰的乙酸仲丁酯的特征吸收峰;并根据朗伯-比尔定律,对乙酸仲丁酯进行定量分析。结果表明,傅里叶中红外光谱法可以准确测定汽油中的乙酸仲丁酯,该方法具有分析速度快、重复性好、分析成本低等优点。

Fourier transform infrared spectrometer was employed to scan the tained characteristic absorption peak of see - butylacetate. Based on the Lambert of sec - butylacetate was obtained. Results showed that the Fourier mid - infrared gasoline and sec -butylacetate , ob- - Bill principle, quantitative analysis spectroscopy method allowed for the accurate determination of sec - butylacetate in the gasoline. The method had fast analysis speed, good repeatability and low cost analysis.