摘要
采用离子色谱法测定丁二酸合成电解液中原料马来酸和产物丁二酸的含量。试样经Ion Pac AG19保护柱及Ion Pac AS19分析柱分离,以25 mmol·L^(-1)氢氧化钾溶液为淋洗液,采用抑制电导器检测。马来酸和丁二酸的质量浓度在1.0～10 mg·L^(-1)范围内与峰面积与峰高均呈线性关系。方法可用于测定合成丁二酸生产过程的不同时段溶液(起始、结束和母液)中马来酸和丁二酸的含量,有助于实现丁二酸的连续式电解合成工艺路线。
Contents of maleic acid （the raw material） and succinic acid （the products） in electrolyte from synthesis of succinie acid were determined by ion chromatography. Ion Pac AG19 protective column and Ion Pac AS19 separation column were used for separation and 25 mmol· L^- 1 KOH solution was used as eluant. Inhibitory conductivity detection was adopted in the determination. Linear relationships between values of peak area or peak height and mass concentration of maleic acid and succinic acid were kept in the range of 1. O- 10 mg · L^-1. The proposed method could be used in the determination of the 2 acids in the electrolyte at different time interval （at starting and ending of electrolysis） and in the mother liquid in the synthetic process. The data obtained were helpful for the realization of synthetic technology of the continuous electrolytic production of succinic acid.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2013年第1期59-62,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
浙江省重点创新团队项目资助(G1010101009601)
