Digitální knihovnaUPCE
 

8/2013-14 Sensing in Electroanalysis

Permanentní URI k tomuto záznamuhttps://hdl.handle.net/10195/56677

Procházet

Filtrovat výsledky zadáním několika prvních písmen
Nyní se zobrazuje 1 - 1 z 1
  • Náhled
    Článekpeer-reviewedpublishedOtevřený přístup
    Determination of insulin using a pretreated pencil graphite electrode
    (Univerzita Pardubice, 2014) Vu, Dai Long; Ertek, Bensu; Červenka, Libor; Dilgin, Yusuf
    In this paper, pretreated pencil graphite electrode (Pre-PGE) was used for the determination of insulin by anodic stripping differential pulse voltammetry (DPASV). The influences of the pretreatment procedures, pH values, accumulation potential and time on the signal enhancement of insulin were optimized, and a novel electrochemical method for the determination of insulin was described. The currents obtained from DPASV measurements at optimum conditions (phosphate buffer solution pH 7.0), accumulation time (60 seconds), applied potential 400 mV vs. Ag/AgCl/3.0 mol L−1 KCl) were linearly correlated with the concentration of insulin. Calibration curve was obtained for insulin concentrations in the range of 5.0-200.0×10-9 mol L−1 .The limit of detection was found to be 2.0×10-9 mol L−1.