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Application of a tubular copper electrode as a potentiometric detector in the determination of amino acids by high performance liquid chromatography.
Alexander, PW and Haddad, PR and Low, GKC and Maitra, C (1981) Application of a tubular copper electrode as a potentiometric detector in the determination of amino acids by high performance liquid chromatography. Journal of Chromatography A, 209 (1). pp. 29-39. ISSN 0021-9673
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A copper tubular electrode (CTE) has been used as a potentiometric detector in the determination of amino acids by reversed-phase high-performance liquid chromatography. The reference electrode was an electrically grounded tubular platinum electrode inserted in the flow stream. Comparison with a variable-wavelength UV absorbance detector showed that the CTE gave comparable response time and sensitivity, but was much more selective, showing response only to copper-binding molecules. The CTE has been applied to the analysis of urine and an intravenous amino acid preparation; no sample pre-treatment was required, other than filtration. Microgram quantities of amino acids were readily detected by using the CTE.
|Journal or Publication Title:||Journal of Chromatography A|
|Page Range:||pp. 29-39|
|Identification Number - DOI:||10.1016/S0021-9673(00)80420-3|
|Additional Information:||The definitive version is available at http://www.sciencedirect.com/|
|Date Deposited:||12 Mar 2008 23:21|
|Last Modified:||18 Nov 2014 03:31|
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