title: Determination of Hg(II) in acidic media by stripping voltammetry with collection.
abstract: Stripping voltammetry with collection at a rotating ring-disk electrode having a platinum ring and a glassy-carbon disk was used for the determination of Hg(II) in 1.0M H(2)SO(4) medium in the range 0.10-4.00 ppM. Satisfactory results were obtained only after a thin film of Au (two monolayer equivalents) was electroplated on the disk electrode. The average relative deviation of the results for determination at the 0.10-ppM level was 7.5 %. The limit of detection for the technique is approximately 0.01 ppM.
authors.affiliation: Department of Chemistry, Iowa State University, Ames, Iowa 50010, U.S.A.
authors.forename: R E
authors.initials: RE
authors.lastname: Allen
authors.forename: D C
authors.initials: DC
authors.lastname: Johnson