Selectable-power photoreactor for flow-injection analysis systems and high-performance liquid chromatography post-column photochemical derivatization

被引:10
|
作者
Lores, M [1 ]
Garcia, CM [1 ]
Cela, R [1 ]
机构
[1] UNIV SANTIAGO DE COMPOSTELA,FAC QUIM,DEPT CHIM ANALIT NUTR & BROMATOL,E-15706 SANTIAGO,SPAIN
关键词
post-column reactors; derivatization; LC; flow-injection analysis; photoreactor selectable power; phenolic aldehydes;
D O I
10.1016/0021-9673(95)00854-3
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A new design for a post-column photochemical reactor is presented, differing from those described in the literature in that different working powers (between 8 and 40 W) may be selected in order to improve detection and linearity of response. The application of the device in post-column photoderivatization of phenolic aldehydes-both in high-performance liquid chromatography with UV-Vis or fluorescence detection (isocratic and gradient elutions) and in flow-injection analysis systems is discussed. Use of selectable-power photoreactors such as the one described here allows optimum conditions to be selected for each analyte. Moreover the coil length may be reduced.
引用
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页码:55 / 65
页数:11
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