BACKGROUND CORRECTION IN FREQUENCY-MODULATED SIMULTANEOUS ATOMIC-ABSORPTION SPECTROMETRY

被引：6

作者：

LEHNERT, R ^{[1
]}

QUICK, L ^{[1
]}

RUMP, T ^{[1
]}

WINTER, F ^{[1
]}

CAMMANN, K ^{[1
]}

机构：

[1] UNIV MUNSTER,IST ANALYT CHEM,INST CHEM & BIOSENSORIK V,WILHELM KLEMM STR 8,W-4400 MUNSTER,GERMANY

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 346卷 / 04期

关键词：

D O I：

10.1007/BF00325849

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

For a long time simultaneous multielement determination by AAS has been a subject of intensive research. In this work a simultaneous multielement atomic absorption spectrometry method is described in a special new arrangement, called frequency modulated simultaneous AAS (FremsAAS), using fiberoptics, interference filters and frequency modulation and demodulation by lock-in amplifiers as main devices. Purpose of this work was to equip the FremsAAS with a D2-background correction and to test it with certified reference materials. Mn, Cd, Pb, Cu, Ni, Cr and Zn had been determined simultaneously (three at a time) in sewage sludge (BCR/CRM 146), estuarine sediment (BCR/CRM 277) and phosphate rock (BCR/CRM 32) with good feasibility. Frequency modulated simultaneous AAS with background correction (FremsAASUK) represents an interesting alternative to known instruments.

引用

页码：392 / 395

页数：4