不同产地膜分级乙醇溶解黄腐酸挥发性化学成分对比分析

发布时间：2018-04-25 01:39

本文选题：膜分级 + 黄腐酸　；参考：《分析试验室》2017年05期

【摘要】：采用气相色谱-质谱联用仪(GC-MS)结合保留指数(RI)的方法并利用膜分离技术,对两种不同来源地乙醇溶解黄腐酸进行定性和定量分析,从而为黄腐酸质量标准的建立提供色谱技术支持。不同产地的两种褐煤采用同一种降解手段制备黄腐酸,通过一定的色谱技术和条件,得到峨山分子量小于500黄腐酸(FA-500)的挥发性成分主要有20种,占总成分的88.96%;得到寻甸FA-500的挥发性成分主要有24种,占总成分的91.33%。对比发现,两物质相同成分有12种且含量分别达到了总挥发性成分的76.11%和79.94%。此分析方法的应用阐明了乙醇溶解小分子黄腐酸的化学本质和主要光谱特征,为黄腐酸质量标准的制定提供可靠的方法和技术支持。
[Abstract]:The qualitative and quantitative analysis of the dissolution of fulvic acid by ethanol from two different sources was carried out by gas chromatography-mass spectrometry (GC-MS) combined with retention index (RI) and membrane separation technique. Therefore, chromatographic technical support was provided for the establishment of quality standard of fulvic acid. Two kinds of lignite from different producing areas used the same degradation method to prepare fulvic acid. Through certain chromatographic techniques and conditions, 20 kinds of volatile components with molecular weight less than 500 fulvic acid FA-500 were obtained. The volatile components of Xundian FA-500 are mainly 24 species, accounting for 91.33% of the total components. It was found that there were 12 kinds of the same components and their contents reached 76.11% and 79.94% of the total volatile components, respectively. The application of this analytical method illustrates the chemical nature and main spectral characteristics of alcohol dissolution of small molecule fulvic acid, and provides reliable method and technical support for the formulation of quality standard of fulvic acid.
【作者单位】：四川文理学院化学化工学院;昆明理工大学生命科学与技术学院;
【基金】：国家自然科学基金项目(21166013) 四川省教育厅项目(15ZB0321,17ZB0380) 四川省科技厅项目(2016JY0203,2014FZ0120) 四川文理学院特色培育项目(2015TP008Y)资助
【分类号】：O636.9;TQ028.8

【相似文献】