Determination of sulfide by cathodic stripping voltammetry of silver sulfide films at a rotating silver disk electrode

Journal Article · Wed Apr 01 00:00:00 EST 1981 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00227a006· OSTI ID:6342506

Shimizu, K; Osteryoung, R A

The deposition and stripping behavior of silver sulfide films at the silver rotating disk electrode were investigated. The effect of various factors - rotation rate, scan rate, deposition potential and time, and concentn of sulfide ion - on the stripping peak current and potential were studied. The electrode has been found to be excellent for cathodic stripping voltammetry for the determination of submicro amounts of sulfide ion. Furthermore, differential voltammetry significantly enhanced the signal/noise ratio, and a linear response was obtained over the concentration range 10/sup -8/ to 10/sup -5/ mol dm/sup -3/ of sulfide ion in 0.2 mol dm/sup -3/ NaOH.

• Research Organization: State Univ. of New York, Buffalo
• OSTI ID: 6342506
• Journal Information: Anal. Chem.; (United States), Vol. 53:4
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
SILVER SULFIDES
CHEMICAL ANALYSIS
SULFUR
VOLTAMETRY
ANIONS
CATHODES
ELECTRODEPOSITION
ELECTRODES
FILMS
QUANTITATIVE CHEMICAL ANALYSIS
SILVER
SODIUM HYDROXIDES
ALKALI METAL COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
DEPOSITION
ELECTROLYSIS
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXIDES
IONS
LYSIS
METALS
NONMETALS
OXYGEN COMPOUNDS
SILVER COMPOUNDS
SODIUM COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
400102* - Chemical & Spectral Procedures