离子色谱法同时测定脱硫液中的四种醇胺  

Simultaneous Determination of Four Kinds of Alkanolamines in Desulfurization Solution by Ion Chromatography

作　　者：刘玉秀 朱岩[2] 陈智栋[3] 周旭[4] 陈梅兰[5] 

机构地区：[1]瑞士万通中国中心实验室,北京100192 [2]浙江大学化学系,杭州310028 [3]常州大学化学化工学院,江苏常州213164 [4]江苏省环境科学研究院环境工程重点实验室,南京210036 [5]浙江树人大学生物与环境工程学院,杭州310015

出　　处：《中国无机分析化学》2012年第3期47-49,共3页Chinese Journal of Inorganic Analytical Chemistry

基　　金：浙江省自然科学基金一般项目(Y5100280);浙江省科技项目分析测试项目(2011C37034)

摘　　要：建立了同时分离测定异丙醇胺(IPA)、三异丙醇胺(TIPA)、N-甲基二乙醇胺(MDEA)、N,N-二甲基二乙醇胺(DMAE)和6种阳离子的离子色谱法。色谱柱为TSKgelSuperIC-CR阳离子交换柱,流动相为冠醚(2.0mmol/L)、甲基磺酸(2.2mmol/L)、L-组氨酸(0.5mmol/L)混合溶液,流速为0.5mL/min,抑制电导检测。DMAE、MDEA、TIPA、IPA的检出限分别为0.48、36.9、47.04和1.39μg/L;样品中DMAE、MDEA、TIPA、IPA平均回收率为103.15%,95.48%,97.64%,92.41%。方法具有简单、快速、灵敏、抗干扰等优点,用于测定脱硫液中的DMAE、MDEA、TIPA和IPA,结果令人满意。A new ion chromatographic method for simultaneous separation and determination of isopropanolamine （IPA）, triisopropanolamine （TIPA）, methyldiethanolamine （MDEA）, Dimethylethanolamine（DMAE） and six kinds of cations was developed. The optimal chromatographic conditions were as following： a TSK gelSuper IC-CR cation exchange column, the mixture of 2.0mmol/L 18-Crown-6, 2.2 mmol/L Methanesulfonic acid and 0.5 mmol/L L-Histidine as eluent, a flow rate of 0.5mL/min, a suppressed conductivity detection, and the injection volume of 30 μL. The limit of detection for DMAE, MDEA, TIPA, IPA was 0.48, 36.9, 47.0 and 1.39 μg/L, respectively. The average recovery for DMAE, MDEA, TIPA, IPA was 103.15%,95.48%,97.64%,92.41% , respectively. The method has the advantages of simplicity, fast speed, high sensitivity and good anti-interference capability. It has been applied for the determination of DMAE, MDEA, TIPA, and IPA in the desulfurization solution with satisfactory results.

关 键 词：离子色谱法 脱硫剂 DMAE MDEA TIPA IPA 

分 类 号：O657.75[理学—分析化学] TH833[理学—化学]