PRECISION OF FLAME ATOMIC-ABSORPTION SPECTROMETRIC MEASUREMENTS OF ALUMINUM, CHROMIUM, COBALT, EUROPIUM, LEAD, MANGANESE, NICKEL, POTASSIUM, SELENIUM, SILICON, TITANIUM, AND VANADIUM

被引：20

作者：

BOWER, NW ^{[1
]}

INGLE, JD ^{[1
]}

机构：

[1] OREGON STATE UNIV,DEPT CHEM,CORVALLIS,OR 97331

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 01期

关键词：

D O I：

10.1021/ac50037a026

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The precision of flame atomic absorption measurements on a Varian AA-6 spectrophotometer has been evaluated for 12 elements. For some elements, the effect on precision of analysis line, type of flame, hollow cathode current, and spectral bandpass are determined. As previously shown for other elements, analyte absorption noise usually limits precision over most of the analytically useful absorbance range. Signal shot noise and amplifier readout noise are never limiting under normal conditions. At low absorbances, lamp and flame transmission noise usually dominate and, at high absorbances, analyte and background emission noise are usually most significant. © 1979, American Chemical Society. All rights reserved.

引用

页码：72 / 76

页数：5

共 5 条

[1]

ALTARELLI G, 1978, NUCL PHYS B, V146, P544

[2] PRECISION OF FLAME ATOMIC-ABSORPTION MEASUREMENTS OF ARSENIC, CADMIUM, CALCIUM, COPPER, IRON, MAGNESIUM, MOLYBDENUM, SODIUM, AND ZINC [J].