AbstractThe adsorptive stripping voltammetric behavior of adenosine deaminase has been studied by both square‐wave and differential pulse modes, leading to analytical methodologies for its determination in aqueous samples. The application of a square‐wave mode for the stripping of adsorbed adenosine deaminase has proved to be much more sensitive, yielding signals 50 times larger than those obtained by applying a differential pulse scan. The precision obtained for both voltammetric methods, at a concentration level as low as 8 ppb of the enzyme, was shown to be 2.47% (r.s.d.,n= 7) and 2.28% (r.s.d.,n= 7), respectiv
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