SAMPLING AT CONSTANT TEMPERATURE IN GRAPHITE-FURNACE ATOMIC-ABSORPTION SPECTROMETRY

被引：68

作者：

MANNING, DC ^{[1
]}

SLAVIN, W ^{[1
]}

MYERS, S ^{[1
]}

机构：

[1] PERKIN ELMER CORP,MAIN AVE,NORWALK,CT 06856

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 14期

关键词：

D O I：

10.1021/ac50050a019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

When using graphite furnace sampling in atomic spectrometry, it is advantageous to introduce the sample into a hot environment that is at thermal equilibrium (constant temperature). One means of doing this is to dry an aliquot of the sample on a wire made of a high melting point material, then to place the wire and dried sample into the hot furnace. Using this procedure, matrix interferences are eliminated or greatly reduced compared to the conventional procedure of introducing the sample onto the cold wall of the furnace for the determination of Pb and TI. High concentrations of chloride matrix provide a vapor phase interference. © 1979, American Chemical Society. All rights reserved.

引用

页码：2375 / 2378

页数：4

共 15 条

[1] FILAMENT IN FURNACE ATOMIZATION ATOMIC-ABSORPTION SPECTROMETRY [J].