OPTIMIZING ELECTRON-CAPTURE DETECTOR PERFORMANCE FOR GAS-CHROMATOGRAPHIC ANALYSIS OF POLYCHLORINATED-BIPHENYLS

被引：10

作者：

CHEN, CY ^{[1
]}

LING, YC ^{[1
]}

机构：

[1] NATL TSING HUA UNIV,DEPT CHEM,HSINCHU 300,TAIWAN

来源：

CHROMATOGRAPHIA | 1992年 / 33卷 / 5-6期

关键词：

GAS CHROMATOGRAPHY; ELECTRON-CAPTURE DETECTOR; POLYCHLORINATED BIPHENYLS; SIMPLEX OPTIMIZATION; PRINCIPAL COMPONENT FACTOR ANALYSIS;

D O I：

10.1007/BF02276194

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A modified simplex technique has been applied to optimize the performance of an electron-capture detector under constant-current and constant-frequency pulse modes for the gas chromatographic analysis of polychlorinated biphenyls. Optimal performance was obtained by adjusting the four experimental parameters of pulse voltage, detector temperature, make-up gas flow rate, and reference current (or pulse frequency) using the signal-to-noise ratio of the eluting peak as the criterion. The results show that constant-current pulse mode has better sensitivity and dynamic range whereas the constant-frequency pulse mode has the lower detection limit. Subsequent principal component factor analysis indicated that similar performance is achievable using only three parameters.

引用

页码：272 / 278

页数：7

共 23 条

[1] OPTIMIZATION OF TEMPERATURE PROGRAMMING IN GAS-CHROMATOGRAPHY WITH RESPECT TO SEPARATION TIME .1. TEMPERATURE PROGRAM OPTIMIZATION FUNDAMENTALS [J].