Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Thiocyanate and nitrite analysis using miniaturised isotachophoresis on a planar polymer chip
AU - Prest, Jeff E.
AU - Baldock, Sara J.
AU - Beardah, Matthew S.
AU - Doyle, Sean P.
AU - Fielden, Peter R.
AU - Goddard, Nicholas J.
AU - Brown, Bernard J. Treves
PY - 2011/8/7
Y1 - 2011/8/7
N2 - 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.
AB - 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.
U2 - 10.1039/c0an00400f
DO - 10.1039/c0an00400f
M3 - Journal article
VL - 136
SP - 3170
EP - 3176
JO - Analyst
JF - Analyst
SN - 0003-2654
IS - 15
ER -