Determination of inorganic selenium species by miniaturised isotachophoresis on a planar polymer chip

Prest, J. E. and Baldock, S. J. and Fielden, P. R. and Goddard, N. J. and Brown, B. J. T. (2003) Determination of inorganic selenium species by miniaturised isotachophoresis on a planar polymer chip. Analytical and Bioanalytical Chemistry, 376 (1). pp. 78-84. ISSN 1618-2642

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Abstract

The use of miniaturised isotachophoresis to allow the simultaneous determination of two inorganic selenium species has been investigated using a poly(methyl methacrylate) chip with a 44-mm-long, 200-μm-wide, 300-μm-deep separation channel. The miniaturised device included an integrated on-column, dual-electrode conductivity detector and was used in conjunction with a hydrodynamic fluid transport system. A simple electrolyte system has been developed which allowed the separation of selenium(IV) and selenium(VI) species to be made in under 210 s. The limits of detection were calculated to be 0.52 mg L−1 for selenium(IV) and 0.65 mg L−1 for selenium(VI). The method allowed the separation of the selenium species from a range of common anions including fluoride, nitrate, nitrite, phosphate, sulfate and sulfite.

Item Type:
Journal Article
Journal or Publication Title:
Analytical and Bioanalytical Chemistry
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600/1602
Subjects:
ID Code:
77553
Deposited By:
Deposited On:
07 Jan 2016 09:54
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jan 2020 07:57