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@article{710590, author = {Hasoň, Stanislav and Vetterl, Vladimír}, article_location = {Amsterdam}, article_number = {3}, keywords = {gold amalgam-alloy electrode; platinum amalgam-alloy electrode; silver amalgam-alloy electrode; copper amalgam-alloy electrode; oligodeoxynucleotides; ODN; purine base residue-copper(I) complex; analysis of microliter volumes of ODN; ODN adsorption}, language = {eng}, issn = {0039-9140}, journal = {Talanta}, title = {Microanalysis of oligodeoxynucleotides by cathodic stripping voltammetry at amalgam-alloy surfaces in the presence of copper ions.}, volume = {69}, year = {2006} }
TY - JOUR ID - 710590 AU - Hasoň, Stanislav - Vetterl, Vladimír PY - 2006 TI - Microanalysis of oligodeoxynucleotides by cathodic stripping voltammetry at amalgam-alloy surfaces in the presence of copper ions. JF - Talanta VL - 69 IS - 3 SP - 572-580 EP - 572-580 PB - Elsevier Science SN - 00399140 KW - gold amalgam-alloy electrode KW - platinum amalgam-alloy electrode KW - silver amalgam-alloy electrode KW - copper amalgam-alloy electrode KW - oligodeoxynucleotides KW - ODN KW - purine base residue-copper(I) complex KW - analysis of microliter volumes of ODN KW - ODN adsorption N2 - The application of gold amalgam-alloy electrode (AuAE) for a sensitive voltammetric detection of different oligodeoxynucleotides (ODNs) containing the purine units within the ODN-chains in the presence of copper is described. The detection of ODNs is based on the following steps: (i)an acidic hydrolysis of the ODN (ahODN) samples performing the release of the purine bases from ODN-chain; (ii)an electrochemical accumulation of the complex of the purine base residues released from ODN-chain with copper ions Cu(I) (ahODN-Cu(I) complex) at the potential of reduction of copper ions Cu(II) on the amalgam-alloy electrode surfaces; (iii) finally followed the cathodic stripping of the electrochemically accumulated ahODN-Cu(I) complex from the electrode surface. The proposed electrochemical method was used for: (a) detection of different ODN lengths containing only adenine units (the number of adenine units within the ODN-chains was changed from 10 to 80), and (b) determination of the number of purine units within the 30-mer ODNs containing a random sequence segments involving both the purine and pyrimidine units. ER -
HASOŇ, Stanislav a Vladimír VETTERL. Microanalysis of oligodeoxynucleotides by cathodic stripping voltammetry at amalgam-alloy surfaces in the presence of copper ions. \textit{Talanta}. Amsterdam: Elsevier Science, 2006, roč.~69, č.~3, s.~572-580. ISSN~0039-9140.
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