Determination of metals in airborne particles by electrothermal vaporization inductively coupled plasma mass spectrometry after accumulation by electrostatic precipitation

被引:13
作者
Bitterli, BA
Cousin, H
Magyar, B
机构
[1] Inorganic Chemistry Laboratory, ETH Zürich, 8092 Zürich
关键词
electrostatic precipitation; electrothermal vaporization; inductively coupled plasma mass spectrometry; airborne particles;
D O I
10.1039/a701451a
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A method to determine metals in airborne particles by electrothermal vaporization ICP-MS after sampling by electrostatic precipitation into a graphite tube is described. A mobile sampler was used to collect samples. Calibration was performed with dried aerosol produced by the nebulization of a standard solution, For Cr, Fe, Mn, Cu, Zn, Sr, Cd, Sb, Ba and Pb, the absolute detection limits were in the picogram range, The high sensitivity allowed the monitoring of several metals in ambient air with a time resolution of hours, The precision was 10-15%, The addition of 5 mu g g(-1) of Na (as NaNO3) to the standard solutions improved the signal intensities and reduced the curvature of the calibration curves, The influence of CHF3 was investigated but subsequently abandoned owing to a general increase not only of the signals but also of the background.
引用
收藏
页码:957 / 961
页数:5
相关论文
共 22 条
[1]  
Berryman NG, 1996, FRESEN J ANAL CHEM, V355, P783
[2]  
BITTERLI BA, 1997, THESIS FEDERAL I TEC
[3]  
BROCKMANN JE, 1993, AEROSOL MEASUREMENT, pCH6
[4]   SOURCES AND COMPOSITION OF AEROSOL FROM KHARTOUM, SUDAN [J].
ELTAYEB, MAH ;
XHOFFER, CF ;
VANESPEN, PJ ;
VANGRIEKEN, RE ;
MAENHAUT, W .
ATMOSPHERIC ENVIRONMENT PART B-URBAN ATMOSPHERE, 1993, 27 (01) :67-76
[5]  
HIDY GM, 1994, ATMOSPHERIC SULFUR N, P56
[6]   INTERPRETING SOME ANALYTICAL CHARACTERISTICS OF THERMAL DISPERSION METHODS USED FOR SAMPLE INTRODUCTION IN ATOMIC SPECTROMETRY [J].
KANTOR, T .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1988, 43 (9-11) :1299-1320
[7]  
KATOH T, 1995, FRESEN J ANAL CHEM, V352, P577
[8]   DIRECT DETERMINATION OF ATMOSPHERIC LEAD BY ZEEMAN SOLID SAMPLING GRAPHITE-FURNACE ATOMIC-ABSORPTION SPECTROMETRY (GFAAS) [J].
LOW, PS ;
HSU, GJ .
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1990, 337 (03) :299-305
[9]   STUDIES ON THE DETERMINATION OF THE METAL CONTENT OF AIRBORNE-PARTICULATES BY FURNACE ATOMIZATION NONTHERMAL EXCITATION SPECTROMETRY [J].
LUDKE, C ;
HOFFMANN, E ;
SKOLE, J .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1994, 9 (06) :685-689
[10]   TRACE-ELEMENT COMPOSITION AND ORIGIN OF THE ATMOSPHERIC AEROSOL IN THE NORWEGIAN ARCTIC [J].
MAENHAUT, W ;
CORNILLE, P .
ATMOSPHERIC ENVIRONMENT, 1989, 23 (11) :2551-2569