Abstract
The anodic stripping potentiometric (ASP) determination of antimony on a combined working–auxiliary–reference electrode system is described. The method utilises 3 M HCl as supporting electrolyte and a combined glassy carbon mercury film electrode at an electrolysis potential of –400 mV versus Ag–AgCl (1 M HCl) for the reliable determination of ultratrace concentrations of antimony. A detection limit of 0.3 µg l–1 and a linear concentration range of 0.3–150 µg/l–1 antimony were accomplished under these conditions with an electrolysis time of 10 min. The use of L-cysteine was effective for the reduction of SbV to SbIII and its subsequent use for the ASP determination of the metalloid. The method was successfully applied to the determination of trace and ultratrace concentrations of antimony in water and orchard leaves samples.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
