NDLI: On-line removal of interferences in the analysis of biological materials by flow injection inductively coupled plasma mass spectrometry

Content Provider	Royal Society of Chemistry (RSC)
Author	Worsfold, Paul J. Ebdon, Les Crews, Helen Baxter, Malcolm Fisher, Andrew S.
Copyright Year	1993
Abstract	A method of matrix elimination was developed that facilitates the interference-free determination of the trace metals vanadium, manganese, copper, zinc, cadmium and lead in biological matrices by inductively coupled plasma mass spectrometry. The method involves chelation of the analytes onto an iminodiacetate-based resin in a microcolumn with simultaneous matrix removal. The analytes are then eluted into the spectrometer with 3 mol l–1 nitric acid using a flow injection procedure. Analysis of certified reference materials yielded results in reasonable agreement with the certified values. Recovery tests showed close to 100% recoveries for manganese, copper, cadmium and lead, 90% recovery for vanadium and 85% recovery for zinc. The limit of detection (3σ) for these analytes using a 175 µl sample loop ranged from 0.6 to 9.9 ng ml–1i.e., from 75 to 1800 pg or from 50 to 825 µg kg–1 dry mass of sample. The same chromatographic system was applied to chromium determinations, but proved unsuccessful.
Starting Page	691
Ending Page	695
Page Count	5
File Format	PDF
ISSN	02679477
Volume Number	8
Issue Number	5
Journal	Journal of Analytical Atomic Spectrometry
DOI	10.1039/JA9930800691
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Composite material Vanadium Manganese Copper Zinc Cadmium Inductively coupled plasma mass spectrometry Ion-exchange resin Spectrometer Acid Chromatography Chromium
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Analytical Chemistry

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