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Determination of lead by flow-injection inductively coupled plasma mass spectrometry comparing several calibration techniques

Jan Goossens UGent, Luc Moens UGent and Richard Dams (1994) ANALYTICA CHIMICA ACTA. 293(1-2). p.171-181
abstract
In this paper we have evaluated the coupling of a modular flow-injection system to an inductively coupled plasma mass spectrometer for lead determinations by direct analysis of wines and urine samples. The flow-injection system used allows an on-line sample dilution and an on-line addition of internal standard and calibrant solution. It was found that particular attention should be paid to the adjustment of the nebulizer gas flow rate in order to obtain maximum sensitivity and precision. In this way and for the experimental set-up described, R.S.D. values less than or equal to 1% on the Pb-208(+) signal for 5 consecutive injections could readily be achieved. The relative merits of external calibration, standard additions and isotope dilution for the calibration of the transient lead signals were compared. It appeared that from the viewpoint of accuracy, precision and flexibility, the standard additions method is the most preferable procedure. Further, it was found that the precision of isotope ratio determinations is degraded in comparison to continuous nebulization. However, matrix-induced mass fractionation on the lead isotope ratios as observed for the continuous nebulization of an aqueous ethanolic (wine) matrix did not occur in flow-injection analysis. The quantitation of lead by direct analysis of undiluted wine and urine samples using this flow-injection method in combination with standard additions calibration resulted in very accurate results (compared to certified and reference values). Excellent relative standard deviations (for 5 consecutive determinations) were obtained ranging from 1% (50 mu g l(-1) Pb in white wine) to 5% (3.6 mu g l(-1) Pb in urine).
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
INDUCTIVELY COUPLED PLASMA MS, FLOW INJECTION, LEAD, URINE, WINE
journal title
ANALYTICA CHIMICA ACTA
Anal. Chim. Acta
volume
293
issue
1-2
pages
171 - 181
Web of Science type
Article
ISSN
0003-2670
DOI
10.1016/0003-2670(94)00089-1
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
198692
handle
http://hdl.handle.net/1854/LU-198692
date created
2004-01-14 13:42:00
date last changed
2018-01-29 12:18:50
@article{198692,
  abstract     = {In this paper we have evaluated the coupling of a modular flow-injection system to an inductively coupled plasma mass spectrometer for lead determinations by direct analysis of wines and urine samples. The flow-injection system used allows an on-line sample dilution and an on-line addition of internal standard and calibrant solution. It was found that particular attention should be paid to the adjustment of the nebulizer gas flow rate in order to obtain maximum sensitivity and precision. In this way and for the experimental set-up described, R.S.D. values less than or equal to 1\% on the Pb-208(+) signal for 5 consecutive injections could readily be achieved. The relative merits of external calibration, standard additions and isotope dilution for the calibration of the transient lead signals were compared. It appeared that from the viewpoint of accuracy, precision and flexibility, the standard additions method is the most preferable procedure. Further, it was found that the precision of isotope ratio determinations is degraded in comparison to continuous nebulization. However, matrix-induced mass fractionation on the lead isotope ratios as observed for the continuous nebulization of an aqueous ethanolic (wine) matrix did not occur in flow-injection analysis. The quantitation of lead by direct analysis of undiluted wine and urine samples using this flow-injection method in combination with standard additions calibration resulted in very accurate results (compared to certified and reference values). Excellent relative standard deviations (for 5 consecutive determinations) were obtained ranging from 1\% (50 mu g l(-1) Pb in white wine) to 5\% (3.6 mu g l(-1) Pb in urine).},
  author       = {Goossens, Jan and Moens, Luc and Dams, Richard},
  issn         = {0003-2670},
  journal      = {ANALYTICA CHIMICA ACTA},
  keyword      = {INDUCTIVELY COUPLED PLASMA MS,FLOW INJECTION,LEAD,URINE,WINE},
  language     = {eng},
  number       = {1-2},
  pages        = {171--181},
  title        = {Determination of lead by flow-injection inductively coupled plasma mass spectrometry comparing several calibration techniques},
  url          = {http://dx.doi.org/10.1016/0003-2670(94)00089-1},
  volume       = {293},
  year         = {1994},
}

Chicago
Goossens, Jan, Luc Moens, and Richard Dams. 1994. “Determination of Lead by Flow-injection Inductively Coupled Plasma Mass Spectrometry Comparing Several Calibration Techniques.” Analytica Chimica Acta 293 (1-2): 171–181.
APA
Goossens, Jan, Moens, L., & Dams, R. (1994). Determination of lead by flow-injection inductively coupled plasma mass spectrometry comparing several calibration techniques. ANALYTICA CHIMICA ACTA, 293(1-2), 171–181.
Vancouver
1.
Goossens J, Moens L, Dams R. Determination of lead by flow-injection inductively coupled plasma mass spectrometry comparing several calibration techniques. ANALYTICA CHIMICA ACTA. 1994;293(1-2):171–81.
MLA
Goossens, Jan, Luc Moens, and Richard Dams. “Determination of Lead by Flow-injection Inductively Coupled Plasma Mass Spectrometry Comparing Several Calibration Techniques.” ANALYTICA CHIMICA ACTA 293.1-2 (1994): 171–181. Print.