%0 Journal Article
%T Determination of lead(II) and cadmium(II) in water lily stems using a bismuth film electrode
%A Chooto
%A Pipat
%A Somkid
%A Monthira
%J -
%D 2019
%R 10.5599/jese.651
%X Sa£¿etak Mesoporous silica nanoparticles and chitosan were combined with ex-situ bismuth film modified glassy carbon electrode (NanoSiO2¨CCTS/BiFE) for simultaneous determination of Pb(II) and Cd(II) in HCl/KCl pH 2.2. Differential pulse anodic stripping voltammetry (DPASV) measurements, based on formation of ion-associates between chlorocomplexes and protonated amino groups (¨CNH3+) of chitosan at the electrode surface, were explored. Under optimum conditions, the linear correlation coefficient was 0.998 for both Pb(II) and Cd(II) after 240 s of deposition time. The limits of detection (LOD) and quantification (LOQ) were 1.0 mg/L and 3.3 mg/L for Pb(II) and 0.5 mg/L and 1.6 mg/L for Cd(II), respectively. The method exhibited satisfactory reproducibility and the results comparable to ICP-OES. Also, DPASV at NanoSiO2¨CCTS/BiFE was applied successfully in determining Pb(II) and Cd(II) in water lily stems in Thale Noi
%K Anodic stripping voltammetry
%K mesoporous silica nanoparticles
%K chitosan
%U https://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=321069