气相色谱法分析草酸二甲酯纯度方法改进研究
Improvement of Gas Chromatography Method for Analyzing the Purity of Dimethyl Oxalate
李继博1
作者信息
- 1. 国能榆林化工有限公司,陕西 榆林 719300
- 折叠
摘要
DMO国标分析方法采用毛细色谱柱进行分析,在国标方法使用过程中没有提到空白计算方法,使分析结果和实际样品有差别.在分析过程中由于仪器有细微差别,组分分离度不好,DMO出现过载现象,为了使各组分色谱峰出峰的有效分离,排除干扰,对柱流量和分流比及进样方式进行了改动,使各个组分有效分离,消除DMO因进样产生的过载现象.
Abstract
The DMO national standard analysis method uses capillary chromatography columns for analysis,and the blank calculation method is not mentioned during the use of the national standard method,resulting in differences between the analysis results and actual samples.During the analysis process,due to slight differences in instruments and poor component separation,DMO experienced overload.In order to effectively separate the peaks of each component's color spectrum and eliminate interference,changes were made to the column flow rate,split ratio,and injection method to effectively separate each component and eliminate the overload phenomenon caused by injection of DMO.
关键词
乙醇-DMO/分离度/色谱柱/有效分离/干扰Key words
ethanol-DMO/separation degree/chromatographic column/effective separation/interfere引用本文复制引用
出版年
2024
NETL
NSTL
万方数据