FLAMELESS ATOMIC-ABSORPTION DETERMINATION OF PHOSPHORUS USING ZRC COATED GRAPHITE ATOMIZER TUBES

被引：31

作者：

HAVEZOV, I

RUSSEVA, E

JORDANOV, N

机构：

[1] Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia

来源：

FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE | 1979年 / 296卷 / 2-3期

关键词：

Best. von Phosphor in Stahl; flammenlos; ZrC-beschichtete Graphitrohrküvette; Spektralphotometrie; Atomabsorption;

D O I：

10.1007/BF00495174

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A flameless atomic-absorption method for determination of phosphorus is developed, employing zirconium treated graphite tubes. The great improvement of the sensitivity with these tubes eliminates the necessity of adding La(NO3)3. The sensitivity does not vary from tube to tube and its maximal value is attained within the first 2-3 firings. The atomization signal is practically the same within the range of 2,600-2,800° C when the rise of the temperature is high (> 1,500° C/s). The best signal to noise ratio is obtained at 2,600° C. The detection limit is 0.05 ppm with injection of 50 μl. The method is applied to the analysis of a standard steel sample. © 1979 Springer-Verlag.

引用

页码：125 / 127

页数：3

共 10 条

[1]

Barnett W. B., 1976, Atomic Absorption Newsletter, V15, P33

[2] ESTIMATION OF SODIUM TRIPHOSPHATE - IMPROVEMENT IN ZINC TITRATION METHOD [J].