STUDY OF THE CHARACTERISTICS AND ANALYTICAL APPLICATION OF A CAPILLARY CHROMATOGRAPH WITH AN ELECTROCHEMICAL DETECTOR

被引:3
作者
RUBAN, VF
ANISIMOVA, IA
BELENKII, BG
机构
[1] Institute of Macromolecular Compounds, the Academy of Sciences, the USSR, Leningrad
来源
JOURNAL OF CHROMATOGRAPHY | 1990年 / 520卷
关键词
D O I
10.1016/0021-9673(90)85114-B
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The characteristics of a capillary liquid chromatograph consisting of a syringe pump, microinjector, fused-silica capillary columns of I.D. 0.2-0.4 mm packed with different sorbents and an electrochemical detector of the amperometric type were investigated. The relative standard deviation of the retention times was <0.3% and that of the height of the chromatographic peak was <1%. The detection limit for catecholamines was 0.1 pg. Low extra-column spreading makes it possible to attain a separation efficiency with a minimum reduced plate height of 2.1-2.9. Examples are given of the application of the capillary liquid chromatograph to the separation of phenol compounds and amino acids in model and real samples. © 1990.
引用
收藏
页码:307 / 313
页数:7
相关论文
共 25 条