A high-frequency form of this technique can measure nanomolar changes in biomolecule concentration in a minimally invasive fashion. A form of this technique produces a characteristic peak-to-peak separation between E-sub-pc and E-sub-pa of “57 over n” when applied to a reversible process. The highest value measured in one form of this technique is proportional to the square root of the product of the diffusion constant and scan rate according (10[1])to the (10[1])Randles–Ševčík (10[2])(“shev-CHEEK”) equation. (10[3])This technique’s input can be adjusted stepwise to produce a staircase pattern. A form of this (10[1])technique produces closed, (10[1])“duck-shaped” curves (10[3])when plotting (10[2])current over time. (10[1])For 10 points, name this electrochemical technique (-5[1])where the (10[1])potential of an electrode is varied, which comes in (10[1])“linear sweep” (-5[1])and “cyclic” (10[1])forms. (10[2])■END■ (10[1]0[21])