MICRODETERMINATION OF FLUORIDE BY LASER-EXCITED MOLECULAR FLUORESCENCE SPECTROSCOPY IN A GRAPHITE-FURNACE

被引：8

作者：

ANWAR, J ^{[1
]}

ANZANO, JM ^{[1
]}

PETRUCCI, G ^{[1
]}

WINEFORDNER, JD ^{[1
]}

机构：

[1] UNIV FLORIDA,DEPT CHEM,GAINESVILLE,FL 32611

来源：

MICROCHEMICAL JOURNAL | 1991年 / 43卷 / 01期

关键词：

D O I：

10.1016/0026-265X(91)90041-M

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Fluoride at picogram levels is determined by using laser-excited molecular fluorescence of MgF produced in a graphite atomizer by adding magnesium to the fluoride sample. A pulsed dye-laser, tuned at 268 nm, is used to excite MgF and the resulting fluorescence is measured at 358 nm. Experimental parameters, including graphite furnace conditions and magnesium concentration, are optimized. The effect of other halides and anions on MgF fluorescence intensity have also been explored. © 1991.

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页码：77 / 84

页数：8

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