Issue 7, 2013
From the journal:

Journal of Analytical Atomic Spectrometry

Solution–cathode glow discharge – optical emission spectrometry of a new design and using a compact spectrograph†

Todd A. Doroski,a   Allison M. King,a   Michael P. Fritza  and  Michael R. Webb*a  

* Corresponding authors

a Department of Chemistry and Biochemistry, University of North Carolina Wilmington, Wilmington, NC 28403, USA
E-mail: webbm@uncw.edu
Fax: +1 910 962 3013
Tel: +1 910 962 7285

Abstract

A solution–cathode glow discharge is coupled to a compact spectrograph. Such a coupling results in a small, potentially portable instrument that can simultaneously detect a range of metals by optical emission spectrometry. Detection limits were calculated for Ag (1 ppb), Cd (2 ppb), Cu (8 ppb), Fe (40 ppb), Hg (20 ppb), Mg (3 ppb), Ni (12 ppb), Pb (10 ppb) and Se (3 ppm). These values are similar to those for an earlier, monochromator-based solution–cathode glow discharge system. All calibration curves showed good linearity (R2 ≥ 0.9994). Short-term precision ranged from 0.6–7%.

Graphical abstract: Solution–cathode glow discharge – optical emission spectrometry of a new design and using a compact spectrograph

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Article information

DOI
https://doi.org/10.1039/C3JA50092F
Article type
Paper
Submitted
18 Mar 2013
Accepted
15 May 2013
First published
15 May 2013

J. Anal. At. Spectrom., 2013,28, 1090-1095

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Solution–cathode glow discharge – optical emission spectrometry of a new design and using a compact spectrograph

T. A. Doroski, A. M. King, M. P. Fritz and M. R. Webb, J. Anal. At. Spectrom., 2013, 28, 1090 DOI: 10.1039/C3JA50092F

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