A detailed voltammetric study of 2,4-dinitrophenylhydrazine (DNPH), a DNPH modified nucleotide(dCDNPHMP) and a short single stranded DNA (ssDNA-DNPH) at mercury meniscus modified silver solid amalgam electrode (m-AgSAE) is presented in this work. Electrochemical behaviour of these compounds was studied using cyclic voltammetry (CV), adsorptive stripping CV and open circuit adsorptive transfer stripping CV. Successful incorpo-ration of the DNPH labeled nucleoside triphosphate into the DNA structure shows that selected DNApolymerase tolerates this bulky moiety and can be used, in combination with electrochemical methodsutilizing m-AgSAE, in further development of various applications.