A PHOTOMETRIC DETECTOR BASED ON A BLUE-LIGHT-EMITTING DIODE

被引：25

作者：

HAUSER, PC

CHIANG, DWL

机构：

[1] The University of Auckland, Department of Chemistry, Auckland

来源：

TALANTA | 1993年 / 40卷 / 08期

关键词：

D O I：

10.1016/0039-9140(93)80187-V

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The suitability of blue light-emitting diodes as radiation sources in molecular absorption spectroscopy was evaluated. Electronic as well as spectral considerations are discussed. A transducer based on a blue light-emitting diode and a photodiode is described which yields direct absorbance readings by passing the photocurrent to an integrated circuit logarithmic converter. The performance of this device was tested for commonly used spectrophotometric procedures for Cr, Mn, Zn, Fe and Cl and compared with conventional molecular absorption spectroscopy. Also investigated was the application of the transducer as a detector in flow-injection analysis.

引用

页码：1193 / 1200

页数：8

共 28 条

[1] PROBE PHOTOMETER BASED ON OPTOELECTRONIC COMPONENTS FOR DETERMINATION OF TOTAL ALKALINITY IN SEAWATER [J].