Advantages of hydride generation interface for selenium speciation in waters by high performance liquid chromatography–inductively coupled plasma mass spectrometry coupling

This paper focuses on the analytical performance improvement of the coupled technique HPLC–ICPMS using on-line collision/reaction cell technology for selenium elemental and speciation analyses at the ng (Se) l −1 level in aquatic environment. Collision/reaction cell operating parameters were optimis...

Full description

Saved in:
Bibliographic Details
Published in:Talanta (Oxford) 2008-04, Vol.75 (2), p.362-368
Main Authors: Darrouzès, Jérôme, Bueno, Maïté, Simon, Stéphane, Pannier, Florence, Potin-Gautier, Martine
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemical Sciences
Chemistry
Chromatographic methods and physical methods associated with chromatography
Chromatography, High Pressure Liquid - methods
Collision/reaction cell
Environmental Sciences
Exact sciences and technology
Hydride generation
ICPMS
Mass Spectrometry - methods
Other chromatographic methods
Selenium
Sensitivity and Specificity
Speciation
Spectrometric and optical methods
Ultraviolet Rays
Water
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper focuses on the analytical performance improvement of the coupled technique HPLC–ICPMS using on-line collision/reaction cell technology for selenium elemental and speciation analyses at the ng (Se) l −1 level in aquatic environment. Collision/reaction cell operating parameters were optimised, resulting in selected conditions of 5.5 ml min −1 H 2 and 0.5 ml min −1 He mixture. The detection limits obtained were around 5 ng (Se) l −1 for total analysis, and between 7 and 15 ng (Se) l −1 depending on the species for speciation analysis. The capability of UV irradiation-hydride generation interfacing to increase detector sensitivity was also evaluated for speciation analysis. The detection limits obtained were in the range 2–8 ng (Se) l −1 depending on the species. Moreover, such interface allowed to prevent bromine introduction to the ICPMS which is particularly convenient for selenium trace analysis in natural waters as 80Se is preserved free from BrH interferences. The developed method was validated using certified water with low selenium content (TM Rain 95, NWRI, Canada) and applied to the analysis of different waters.
ISSN:0039-9140
1873-3573
DOI:10.1016/j.talanta.2007.11.020