摘要
本文利用导数红外光谱测定了环己烷中微量苯的含量。测定中选择 6 74± 2cm-1峰为定量峰 ,并采用峰高、峰面积、一阶导数 (最大、最小、区间 )、二阶导数等方法 ,所得标准曲线方程的相关系数在 0 990～0 995范围之间。当样品中苯的含量在 0 0 10～ 0 10g·10mL-1时 ,其吸光度与浓度呈线性关系。
Trace benzene in cyclohexane was determined by d erivative infrared spectroscopy.In the determination,we selected peak at 674±2 cm- -1 as quantitative peak,and peak height,peak area,first derirative (ma xinum,minimum,region) and second derivative methods were used.The correlation co efficent of standard curve equations were in the range of 0 990—0 995.There i s a linear relationship between absobance and concentration of solution in the r ange of 0 010—0 10 g·10 mL- -1.A quick and precise method for the dete rmination were provided.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2000年第5期681-683,共3页
Spectroscopy and Spectral Analysis
基金
内蒙古教育厅和校青年基金资助课题
关键词
导数红外光谱法
环己烷
苯
定量分析
微量分析
Derivative infrared spectroscopy, Cyclohexane, Benzene, Quantitative determination
