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Multielement analysis of polyethylene using solid sampling electrothermal vaporization ICP mass spectrometry

Frank Vanhaecke UGent, Martin Resano Ezcaray, Marieke Verstraete, Luc Moens UGent and Richard Dams UGent (2000) ANALYTICAL CHEMISTRY. 72(18). p.4310-4316
abstract
Next to laser ablation (LA) also electrothermal vaporization (ETV) from a graphite furnace as a means of sample introduction opens possibilities for direct analysis of solid samples using inductively coupled plasma mass spectrometry (ICPMS). In this paper, it is demonstrated that solid sampling ETV-ICPMS is very web suited for the determination of metal traces in polyethylene. A limited multielement capability is often cited as an important drawback of ETV-ICPMS. However, by studying the effect of monitoring an increasing number of mass-to-charge ratios on the signal profile (integrated signal intensity and repeatability) of selected analyte elements, the multielement capability of (solid sampling) ETV-ICPMS was systematically evaluated, and the results obtained suggest that,with a quadrupole-based ICPMS instrument, at least 11 elements can be determined "simultaneously" (from the same vaporization step), in essence without compromising the sensitivity or the precision of the results obtained. In this work, the "simultaneous" determination of Al, Ba, Cd, Cu, Mn, Pb, and Ti in a polyethylene candidate reference material. has been accomplished, despite the large variation in analyte concentration (from 5 ng/g for Mn to 500 mu g/g for Ti) and in furnace behavior (volatility) they exhibit. To avoid premature losses of Cd during thermal pretreatment of the samples, Pd was used as a chemical modifier. Two different calibration methods external calibration using an aqueous standard solution and single standard additon-were studied and the results obtained were compared with those obtained using neutron activation analysis (NAA) and/or with the corresponding (candidate) certified values (if available). Single standard addition was shown to be preferable (average deviation between ICPMS result and reference value < 3%), although-except for Ba-acceptable results could also be obtained with external calibration.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
STANDARD REFERENCE MATERIALS, ATOMIC-ABSORPTION SPECTROMETRY, NEUTRON-ACTIVATION ANALYSIS, LASER-ABLATION, EMISSION-SPECTROMETRY, GRAPHITE-FURNACE, CHEMICAL MODIFIERS, SILICON-CARBIDE, TRACE-ELEMENTS, PLASMA
journal title
ANALYTICAL CHEMISTRY
Anal. Chem.
volume
72
issue
18
pages
4310 - 4316
Web of Science type
Article
Web of Science id
000089308300009
ISSN
0003-2700
DOI
10.1021/ac0002700
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
124823
handle
http://hdl.handle.net/1854/LU-124823
date created
2004-01-14 13:36:00
date last changed
2012-11-14 15:10:18
@article{124823,
  abstract     = {Next to laser ablation (LA) also electrothermal vaporization (ETV) from a graphite furnace as a means of sample introduction opens possibilities for direct analysis of solid samples using inductively coupled plasma mass spectrometry (ICPMS). In this paper, it is demonstrated that solid sampling ETV-ICPMS is very web suited for the determination of metal traces in polyethylene. A limited multielement capability is often cited as an important drawback of ETV-ICPMS. However, by studying the effect of monitoring an increasing number of mass-to-charge ratios on the signal profile (integrated signal intensity and repeatability) of selected analyte elements, the multielement capability of (solid sampling) ETV-ICPMS was systematically evaluated, and the results obtained suggest that,with a quadrupole-based ICPMS instrument, at least 11 elements can be determined {\textacutedbl}simultaneously{\textacutedbl} (from the same vaporization step), in essence without compromising the sensitivity or the precision of the results obtained. In this work, the {\textacutedbl}simultaneous{\textacutedbl} determination of Al, Ba, Cd, Cu, Mn, Pb, and Ti in a polyethylene candidate reference material. has been accomplished, despite the large variation in analyte concentration (from 5 ng/g for Mn to 500 mu g/g for Ti) and in furnace behavior (volatility) they exhibit. To avoid premature losses of Cd during thermal pretreatment of the samples, Pd was used as a chemical modifier. Two different calibration methods external calibration using an aqueous standard solution and single standard additon-were studied and the results obtained were compared with those obtained using neutron activation analysis (NAA) and/or with the corresponding (candidate) certified values (if available). Single standard addition was shown to be preferable (average deviation between ICPMS result and reference value {\textlangle} 3\%), although-except for Ba-acceptable results could also be obtained with external calibration.},
  author       = {Vanhaecke, Frank and Resano Ezcaray, Martin and Verstraete, Marieke and Moens, Luc and Dams, Richard},
  issn         = {0003-2700},
  journal      = {ANALYTICAL CHEMISTRY},
  keyword      = {STANDARD REFERENCE MATERIALS,ATOMIC-ABSORPTION SPECTROMETRY,NEUTRON-ACTIVATION ANALYSIS,LASER-ABLATION,EMISSION-SPECTROMETRY,GRAPHITE-FURNACE,CHEMICAL MODIFIERS,SILICON-CARBIDE,TRACE-ELEMENTS,PLASMA},
  language     = {eng},
  number       = {18},
  pages        = {4310--4316},
  title        = {Multielement analysis of polyethylene using solid sampling electrothermal vaporization ICP mass spectrometry},
  url          = {http://dx.doi.org/10.1021/ac0002700},
  volume       = {72},
  year         = {2000},
}

Chicago
Vanhaecke, Frank, Martin Resano Ezcaray, Marieke Verstraete, Luc Moens, and Richard Dams. 2000. “Multielement Analysis of Polyethylene Using Solid Sampling Electrothermal Vaporization ICP Mass Spectrometry.” Analytical Chemistry 72 (18): 4310–4316.
APA
Vanhaecke, Frank, Resano Ezcaray, M., Verstraete, M., Moens, L., & Dams, R. (2000). Multielement analysis of polyethylene using solid sampling electrothermal vaporization ICP mass spectrometry. ANALYTICAL CHEMISTRY, 72(18), 4310–4316.
Vancouver
1.
Vanhaecke F, Resano Ezcaray M, Verstraete M, Moens L, Dams R. Multielement analysis of polyethylene using solid sampling electrothermal vaporization ICP mass spectrometry. ANALYTICAL CHEMISTRY. 2000;72(18):4310–6.
MLA
Vanhaecke, Frank, Martin Resano Ezcaray, Marieke Verstraete, et al. “Multielement Analysis of Polyethylene Using Solid Sampling Electrothermal Vaporization ICP Mass Spectrometry.” ANALYTICAL CHEMISTRY 72.18 (2000): 4310–4316. Print.