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- Axelsson, Mikael D.Luleå tekniska universitet (author)
Multielemental analysis of Mn–Fe nodules by ICP-MS: optimisation of analytical method
- Article/chapterEnglish2002
Publisher, publication year, extent ...
- 2002
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:ltu-8308
- https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-8308URI
- https://doi.org/10.1039/B105706PDOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- Validerad; 2002; 20061206 (bajo)
- Two acid digestion procedures (microwave-assisted and room temperature) were developed for the quantitative analysis of ferromanganese nodules by inductively coupled plasma double focusing sector field mass spectrometry (ICP-SFMS). Different compositions of the acid mixture, dilution factors and corrections for spectral interferences were tested. A combination of nitric, hydrochloric and hydrofluoric acids is necessary for complete sample digestion, with lowest acid to sample ratios (v/m) of 15 and 1.5. respectively, for the last two acids. Sample dilution factors higher than 2 X 104 should be used in order to decrease matrix effects and provide robust long-term instrumental operation. In spite of high dilution. method detection limits in the sub-mug g(-1) range were obtained for 54 out of 71 elements tested. due to the high detection capability of ICP-SFMS, as well as the special care taken to ensure the purity of reagents, to clean the instrument sample introduction system and to minimise sample handling. Owing to the presence of unresolved (at the resolution available) spectral interferences, accurate determination of Au, Hg, Os, Pd, Re and Rh is impossible without matrix separation. The accuracy of the entire analytical method was tested by the analysis of two nodule reference materials. The results generated agreed to within +/-2% for about 10, within +/-10% for more than 40 and within +/-20% for about 50 of 53 elements for which certified, recommended or literature values are available. A precision better than 3%, expressed as the between-digestion relative standard deviation (n=4). was obtained for the majority of elements, except in cases limited by low analyte concentrations
Subject headings and genre
- NATURVETENSKAP Geovetenskap och miljövetenskap Geokemi hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Geochemistry hsv//eng
- Applied Geology
- Tillämpad geologi
Added entries (persons, corporate bodies, meetings, titles ...)
- Rodushkin, IlyaLuleå tekniska universitet,SGAB Analytica, Luleå, Sweden(Swepub:ltu)ilirod (author)
- Ingri, JohanLuleå tekniska universitet,Geovetenskap och miljöteknik(Swepub:ltu)join (author)
- Öhlander, BjörnLuleå tekniska universitet(Swepub:ltu)bjol (author)
- Luleå tekniska universitetSGAB Analytica, Luleå, Sweden (creator_code:org_t)
Related titles
- In:The Analyst127:1, s. 76-820003-26541364-5528
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