DIRECT DETERMINATION OF MAGNESIUM AT THE 1-PERCENT LEVEL IN SOLID SAMPLES BY GRAPHITE-FURNACE ATOMIC-ABSORPTION SPECTROMETRY

被引：10

作者：

BELARRA, MA

LAVILLA, I

CASTILLO, JR

机构：

[1] Department of Analytical Chemistry, University of Zaragoza

来源：

ANALYTICAL SCIENCES | 1995年 / 11卷 / 04期

关键词：

POLY(VINYL CHLORIDE) ANALYSIS; DIRECT ANALYSIS; SOLID SAMPLE; MAGNESIUM DETERMINATION; GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY;

D O I：

10.2116/analsci.11.651

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Magnesium can be determined at levels above 1% in poly (vinyl chloride) (PVC) by direct analysis of the solid sample using graphite furnace atomic absorption spectrometry (GFAAS) and working at the 383.4 nm line. The analytical conditions used permit the determination of magnesium at a concentration of 2% by interpolation on a calibration graph run for the aqueous solution. No special sample introduction system, platform or matrix modification is required. The relative standard deviation thus achieved is ca. 7%.

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页码：651 / 656

页数：6

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