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Multi-elemental analysis in biological samples by on-line preconcentration on 8-hydroxyquinoline-cellulose microcolumn coupled to simultaneous ICP-AES.
Fresen. J. Anal. Chem. 345, 600-606 (1993)
The analytical performance of an on-line oxine-cellulose microcolumn preconcentration system coupled to simultaneous ICP was investigated. Different factors including the pH of the sample solution, the flow rates of sample loading and eluation, the acidity of eluent and different eluents were investigated and optimized. In comparison with continuous aspiration, the signal enhancement factors of eleven elements (Zn, Cu, Ni, V, Cr, Fe, Mn, Co, Pb, Cd and Al) were in the range of 6.4 to 13.5 for peak height (0.5 s) and 3.7 to 5.8 for peak area (15 s), respectively. The influences of matrix ions, such as Ca, Mg, Fe, Cu and NaCl were studied. Performance was demonstrated by simultaneous determination of seven (Zn, Cu, Ni, V, Cr, Fe, Mn) elements in a number of CRMs. Most results were satisfactory, except for iron and chromium. The possible reasons were discussed. Co, Pb, Cd and Al were not available in the simultaneous instrument. Therefore, only the analytical performance was measured for these elements by the sequential instrument.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
ISSN (print) / ISBN
0937-0633
e-ISSN
1432-1130
Zeitschrift
Fresenius' Journal of Analytical Chemistry
Quellenangaben
Band: 345,
Heft: 8-9,
Seiten: 600-606
Verlag
Springer
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Ecological Chemistry (IOEC)