Oxidation–reduction of mercury ions in 0.1 M KCl was studied by cyclic voltammetry at a grafted polymer electrode (GPE) prepared from polystyrene grafted with acrylonitrile as monomer by use of gamma irradiation. The oxidation potential peaks of mercury at the GPE appear at +0.3 and +0.15 V versus Ag/AgCl as reference electrode; the reduction potential peak appears at 0.0 V. The redox current peaks of Hg(II) were enhanced approximately tenfold in comparison with those at a glassy carbon electrode. Hence, GPE can be used for voltammetric analysis of Hg(II). The redox current of Hg(II) using the GPE was strongly affected by concentration and scan rate. A linear (R 2 = 0.952) calibration plot was obtained up to 0.1 mM Hg(II), with a highly sensitive response. When chronocoulometry and chronoamperometry were used to study 3 mM Hg2+ in 0.1 M KCl, using the GPE as working electrode, the diffusion coefficient (D) was 2.2 × 10−7 cm2/s and the total charge transferred to the GPE as Hg ions was 15.4 μC/m2.
Research on Chemical Intermediates – Springer Journals
Published: Jun 20, 2013
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera