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Determination of low-abundant elements at ultra-trace levels in urine and serum by inductively coupled plasma mass spectrometry
Analytica AB, Aurorum 10, 977 75, Luleå, Sweden.ORCID iD: 0000-0003-4505-4590
Analytica AB, Aurorum 10, 977 75, Luleå, Sweden.
Luleå University of Technology.
Analytica AB, Aurorum 10, 977 75, Luleå, Sweden.
2004 (English)In: Analytical and Bioanalytical Chemistry, ISSN 1618-2642, E-ISSN 1618-2650, Vol. 380, no 2, p. 247-257Article in journal (Refereed) Published
Abstract [en]

A procedure is described for the determination of Y, Zr, Nb, Ru, Rh, Pd, Ag, SB, Te, Hf, Ta, W, Re, Os, Ir, Pt, An, Tl, Bi, and U in human urine and serum at concentrations relevant to the occupationally unexposed population. Sample preparation was limited to tenfold dilution with 2% HCl. A combination of a sample introduction system designed to provide enhanced sensitivity and the use of water and acids of high-purity has resulted in limits of quantification (LOQ) in the sub-nanogram per liter range for 13 analytes. Instrumental background caused by release of analytes (Y, Zr, Ag, Sb, Au, Tl, Bi, U) from different parts of the sample-introduction system was found to be the major limitation in obtaining better LOQ. Nevertheless, detection capabilities of the proposed procedure were adequate for all elements except Ru, Pd, and Rh. Despite the use of high-resolution mode for these analytes some unresolved spectral interferences might still be present. For 13 elements an external accuracy assessment was accomplished by participating in proficiency testing and inter-comparison programs. Results obtained for pooled urine and serum were compared with concentrations reported for occupationelly unexposed populations in recent publications.

Place, publisher, year, edition, pages
2004. Vol. 380, no 2, p. 247-257
National Category
Geochemistry
Research subject
Applied Geology
Identifiers
URN: urn:nbn:se:ltu:diva-7974DOI: 10.1007/s00216-004-2742-7ISI: 000224528900011PubMedID: 15322793Scopus ID: 2-s2.0-13944258588Local ID: 66b5c080-7590-11dc-824d-000ea68e967bOAI: oai:DiVA.org:ltu-7974DiVA, id: diva2:980864
Note

Validerad; 2004; 20071008 (emmeng)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2024-05-08Bibliographically approved

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Rodushkin, IlyaEngström, EmmaBaxter, Douglas C.

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