论文信息 - Spectrofluorimetric flow-through sensor for the determination of beryllium in alloys

Spectrofluorimetric flow-through sensor for the determination of beryllium in alloys

A spectrofluorimetric sensor for the determination of beryllium based on the use of morin, immobilized in a resin exchanger located in a flow cell, is proposed. The determinative method developed with this sensor has a linear range between 1 and 40 ppb, with a relative standard deviation of 1.71% and a sampling frequency of 30 h–1. Its selectivity allows the determination of beryllium in simulated alloy samples with excellent results.

M. Valcárcel | M. D. L. Castro | F. Lázaro | M. D. L. Torre | F. Fernández-Gámez

[1] L. Capitán-Vallvey,et al. Determination of beryllium in water by ion-exchange spectrofluorimetry , 1989 .

[2] C. Vandecasteele,et al. Determination of beryllium in environmental samples by electrothermal atomic absorption spectrometry , 1988 .

[3] Manabu Yamamoto,et al. Microporous polytetrafluoroethylene tube separator for the determination of beryllium by flow injection-or suction-flow-solvent extraction followed by inductively coupled plasma atomic emission spectrometry , 1988 .

[4] W. Seitz,et al. Optical sensor for beryllium based on immobilised morin fluorescence , 1984 .

[5] R. Kuroda,et al. Determination of beryllium in copper-beryllium alloys by flow-injection spectrophotometry , 1981 .

[6] M. H. Fletcher. Fluorometric study of the beryllium-morin system , 1965 .

[7] C. P. Willis,et al. Improvements in the Fluorometric Determination of Submicrogram Quantities of Beryllium , 1961 .

[8] F. Will. Fluorometric Determination of Aluminum in the Partper-Billion Range , 1961 .

[9] F. Grimaldi,et al. Determination of Beryllium in Ores and Rocks by a Dilution-Fluorimetric Method with Morin , 1961 .