| 小波变换漫反射红外光谱法测定剑麻果胶的酯化度 |
| |
| 引用本文： | 姚先超,张雪红,韦金锐,黄艳伟,林翠梧.小波变换漫反射红外光谱法测定剑麻果胶的酯化度[J].分析测试学报,2011,30(3):274-278. |
| |
| 作者姓名： | 姚先超 张雪红 韦金锐 黄艳伟 林翠梧 |
| |
| 作者单位： | 1. 广西大学化学化工学院,广西南宁,530004
2. 广西大学化学化工学院,广西南宁530004;广西师范学院化学与生命科学学院,广西南宁530001 |
| |
| 基金项目： | 国家自然科学基金资助项目，广西自然科学基金资助项目，广西博士、硕士研究生创新基金资助项目 |
| |
| 摘 要： | 采用小波变换,基于漫反射红外光谱(DRIFTS)技术建立了一种快速测定剑麻果胶酯化度(DE)的分析方法.小波变换作为信号处理工具可有效消除信号失真,信噪比(SNR)由84:1增至96:1,信号基线比(SBR)由7.7:1升至8.3:1,同时提高了果胶样品测定的精确度.以不同酯化度的果胶为标准,通过傅立叶变换红外光谱仪(...
|
| 关 键 词： | 红外光谱漫反射技术 剑麻果胶 酯化度 小波变换 |
Determination of Degree of Esterification of Agave sisalana Pectin by Diffuse Reflectance Fourier Transform Infrared Spectroscopy with Wavelet Transform |
| |
| YAO Xian-chao,ZHANG Xue-hong,WEI Jin-rui,HUANG Yan-wei,LIN Cui-wu.Determination of Degree of Esterification of Agave sisalana Pectin by Diffuse Reflectance Fourier Transform Infrared Spectroscopy with Wavelet Transform[J].Journal of Instrumental Analysis,2011,30(3):274-278. |
| |
| Authors: | YAO Xian-chao ZHANG Xue-hong WEI Jin-rui HUANG Yan-wei LIN Cui-wu |
| |
| Institution: | YAO Xian-chao1,ZHANG Xue-hong1,2,WEI Jin-rui1,HUANG Yan-wei1,LIN Cui-wu1 (1.School of Chemistry and Chemical Engineering,Guangxi University,Nanning530004,China,2.School of Chemistry and Life Science,Guangxi Teachers of Education University,Nanning530001,China) |
| |
| Abstract: | A rapid and sensitive method was developed for the determination of the degree of esterification(DE) of Agave sisalana pectin(ASP) by diffuse reflectance Fourier transform infrared spectrotroscopy(DRIFTS).By processing the pectin spectrum obtained by DRIFTS with wavelet transform,the distortion of the original spectral signal caused by light scattering was effectively eliminated,for example,the signal-to-noise ratio(SNR) increased from 84 to 96,while the signal-to-baseline ratio(SBR) increased from 7.7 to 8... |
| |
| Keywords: | DRIFTS Agave sisalana pectin degree of esterification wavelet transform |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《分析测试学报》浏览原始摘要信息 |
| 点击此处可从《分析测试学报》下载免费的PDF全文 |
|
