FLUOROMETRIC FLOW-THROUGH SENSOR FOR THE DETERMINATION OF PYRIDOXAL

被引：5

作者：

CHEN, DH

DECASTRO, MDL

VALCARCEL, M

机构：

[1] UNIV CORDOBA,FAC SCI,DEPT ANALYT CHEM,E-14004 CORDOBA,SPAIN

[2] WUHAN UNIV,DEPT CHEM,WUHAN,PEOPLES R CHINA

来源：

MICROCHEMICAL JOURNAL | 1991年 / 44卷 / 02期

关键词：

D O I：

10.1016/0026-265X(91)90100-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A sensor integrating retention of the reaction product and detection was developed for the determination of pyridoxal by formation of a fluorescent complex between the analyte and beryllium that is retained on the support used to pack the flow-cell (C18 silica beads). An increase in sensitivity by two orders of magnitude in relation to the conventional flow-injection method was obtained (linear determination range between 0.2 and 16.0 μM); an r.s.d. of 0.79% and a sampling frequency of 6 h-1 were also achieved. © 1991.

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页码：215 / 221

页数：7

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