Prest, Jeff E. and Baldock, Sara J. and Beardah, Matthew S. and Doyle, Sean P. and Fielden, Peter R. and Goddard, Nicholas J. and Brown, Bernard J. Treves (2011) Thiocyanate and nitrite analysis using miniaturised isotachophoresis on a planar polymer chip. Analyst, 136 (15). pp. 3170-3176. ISSN 0003-2654
Full text not available from this repository.Abstract
A new method has been developed to improve the determination of thiocyanate using isotachophoresis. This method uses complexation with copper(II) as a mechanism for improving the separation of thiocyanate from chlorate and perchlorate. By using a pH of 3.25 the method can also be used to analyse nitrite. Separations were carried out using a miniaturised poly(methyl methacrylate) (PMMA) separation device. Linearity was observed from 1.25 to 75 mg dm−3 with a correlation coefficient of 0.998 for both thiocyanate and nitrite. Limits of detection for these two species were calculated to be 0.8 mg dm−3 and 0.9 mg dm−3 respectively. The method was successfully applied to the analysis of these anions in a range of samples including explosive residues.