Speciation and quantification of organotin compounds in sediment and drinking water by isotope dilution liquid chromatography-inductively coupled plasma-mass spectrometry

Bishop, DP; Hare, DJ; De Grazia, A; Fryer, F; Doble, PA

Speciation and quantification of organotin compounds in sediment and drinking water by isotope dilution liquid chromatography-inductively coupled plasma-mass spectrometry

Bishop, DP

Hare, DJ

De Grazia, A Fryer, F Doble, PA

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Publication Type:: Journal Article
Citation:: Analytical Methods, 2015, 7 (12), pp. 5012 - 5018
Issue Date:: 2015-01-01

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Field	Value	Language
dc.contributor.author	Bishop, DP https://orcid.org/0000-0002-6533-4410	en_US
dc.contributor.author	Hare, DJ https://orcid.org/0000-0002-5922-7643	en_US
dc.contributor.author	De Grazia, A	en_US
dc.contributor.author	Fryer, F	en_US
dc.contributor.author	Doble, PA https://orcid.org/0000-0002-8472-1301	en_US
dc.date.issued	2015-01-01	en_US
dc.identifier.citation	Analytical Methods, 2015, 7 (12), pp. 5012 - 5018	en_US
dc.identifier.issn	1759-9660	en_US
dc.identifier.uri	http://hdl.handle.net/10453/36670
dc.description.abstract	© 2015 The Royal Society of Chemistry. A rapid method was developed for the determination of monobutyltin, dibutyltin, tributyltin, monophenyltin, diphenyltin, and triphenyltin by liquid chromatography-isotope dilution-inductively coupled plasma-mass spectrometry in sediments and drinking water. All six species were eluted in less than 6.5 minutes with a binary gradient. Offline solid phase extraction was used to pre-concentrate the organotin compounds for quantification employing two calibration procedures; external standard calibration and isotopic dilution. The external standard calibration approach yielded detection limits in the range of 1.5 to 25.6 ng L<sup>-1</sup>. The method was linear over four orders of magnitude with regression coefficients greater than 0.99 and a peak area repeatability less than 4.5% RSD (n = 7) for all compounds. The isotopic dilution method was three times more sensitive with detection limits in the range of 0.5-1.2 ng L<sup>-1</sup>. Recoveries for the external calibration method were from 33-68% with % RSDs of 5.7-12.7%. The isotopic dilution method had recoveries of 70-114% with % RSDs of 1.2-2.9%. The methods were applied to sediments sampled from the Cooks River in Sydney. The isotopic dilution method provided a viable alternative to the more common analysis by gas chromatography-inductively coupled plasma-mass spectrometry for contaminated sediment without the requirement of sample derivatisation.	en_US
dc.relation.ispartof	Analytical Methods	en_US
dc.relation.isbasedon	10.1039/c5ay00555h	en_US
dc.title	Speciation and quantification of organotin compounds in sediment and drinking water by isotope dilution liquid chromatography-inductively coupled plasma-mass spectrometry	en_US
dc.type	Journal Article
utslib.citation.volume	12	en_US
utslib.citation.volume	7	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0399 Other Chemical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CFS - Centre for Forensic Science
utslib.copyright.status	closed_access
pubs.issue	12	en_US
pubs.publication-status	Published	en_US
pubs.volume	7	en_US

Abstract:

© 2015 The Royal Society of Chemistry. A rapid method was developed for the determination of monobutyltin, dibutyltin, tributyltin, monophenyltin, diphenyltin, and triphenyltin by liquid chromatography-isotope dilution-inductively coupled plasma-mass spectrometry in sediments and drinking water. All six species were eluted in less than 6.5 minutes with a binary gradient. Offline solid phase extraction was used to pre-concentrate the organotin compounds for quantification employing two calibration procedures; external standard calibration and isotopic dilution. The external standard calibration approach yielded detection limits in the range of 1.5 to 25.6 ng L^-1. The method was linear over four orders of magnitude with regression coefficients greater than 0.99 and a peak area repeatability less than 4.5% RSD (n = 7) for all compounds. The isotopic dilution method was three times more sensitive with detection limits in the range of 0.5-1.2 ng L^-1. Recoveries for the external calibration method were from 33-68% with % RSDs of 5.7-12.7%. The isotopic dilution method had recoveries of 70-114% with % RSDs of 1.2-2.9%. The methods were applied to sediments sampled from the Cooks River in Sydney. The isotopic dilution method provided a viable alternative to the more common analysis by gas chromatography-inductively coupled plasma-mass spectrometry for contaminated sediment without the requirement of sample derivatisation.

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http://hdl.handle.net/10453/36670