Cited by 101Analytical chemistry methods developmentAnalytical Chemistry and ChromatographyEnvironmental and Analytical Chemistry Studies

Determination of Tetraethyllead and Inorganic Lead in Water by Solid Phase Microextraction/Gas Chromatography

Górecki, Tadeusz, Pawliszyn, Janusz·1996·Analytical Chemistry

Abstract

A new method for the determination of tetraethyllead (TEL) and ionic lead in water by SPME has been developed. TEL is extracted from the headspace over the sample. Inorganic lead is first derivatized with sodium tetraethylborate to form TEL, which is extracted in the same way as pure TEL samples. The analytical procedure was optimized with respect to pH, amount of derivatizing reagent added, stirring conditions, and extraction time. The detection limit obtained for TEL was found to be 100 ppt when using FID and 5 ppt when using ion trap MS (ITMS). The detection limit for Pb(2+), limited by the nonzero blank, was found to be 200 ppt. Linear calibration curves were obtained for both analytes when FID was used for detection. For lead they spanned over 4 orders of magnitude. ITMS offered excellent sensitivity and selectivity, but the calibration curves were nonlinear when the m/z = 295 ion was used for quantitation. The method has been verified on spiked tap water samples. An excellent agreement was found between the results obtained for standard solutions prepared using NANOpure water and spiked tap water samples.

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Crossref · 10.1021/ac9601270

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23 of 23 references verified0 citation errors · 0 not checkable

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Authors
Górecki, T., & Pawliszyn, J.
Affiliations
University of Waterloo (CA)
Venue
Analytical Chemistry
Published
1996-09-01
Volume
68
Issue
17
Pages
3008-3014
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W1982095959
Cited by
101
References
23
Citations by year
2023: 2 · 2021: 1 · 2020: 3 · 2016: 1 · 2015: 2 · 2014: 1 · 2013: 1 · 2012: 1
FWCI
10.97
Type
journal article
Language
en
Open access
closed
Locations
  • Analytical Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Chemistry › Analytical Chemistry › Analytical chemistry methods development
  • Physical Sciences › Chemistry › Spectroscopy › Analytical Chemistry and Chromatography
  • Physical Sciences › Environmental Science › Water Science and Technology › Environmental and Analytical Chemistry Studies
Keywords
tetraethyl lead, inorganic lead, solid-phase microextraction, headspace extraction, sodium tetraethylborate derivatization, tap water, ion trap mass spectrometry, flame ionization detection

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