Untitled

Davis, James A.; Campo, F. Javier del; Marken, Frank; Compton, Richard G.; Cordemans, E.

doi:10.1023/a:1017570716752

Cited by 8 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that this time frame is longer than that normally used in sonoelectroanalysis. This decrease observed for the bismuth film electrode is compared to the constantly decreasing peak heights as seen by Davis and co-workers who studied the effect of 500-kHz ultrasound on the stability of a mercury-modified glassy carbon electrode where significant and sustained ablation of the mercury film was observed [25]. Increasing the ultrasound intensity to 130 W cm -2 produced similar results: after 15 s of insonation a decrease to approximately 22% of the original signal was observed.…”

Section: Resultssupporting

confidence: 72%

Sonoelectroanalysis: investigation of bismuth-film-modified glassy carbon electrodes

Banks¹,

Kruusma²,

Hyde³

et al. 2004

Analytical and Bioanalytical Chemistry

View full text Add to dashboard Cite

Bismuth-modified glassy carbon electrodes have been investigated for their suitability in sonoelectroanalysis. The stability of the bismuth film to the application of ultrasound was assessed via voltammetric and atomic force microscopy (AFM) studies which revealed little ablation at powers up to an intensity of 130 W cm(-2) delivered from a 25-kHz sonic horn. Furthermore, bismuth-film-modified glassy carbon electrodes were evaluated for the sonoelectroanalytical quantification of zinc and cadmium. Detection limits of 2 x 10(-7) M and 6 x 10(-9) M respectively were found after a 60-s deposition time via an acoustically assisted deposition protocol.

show abstract

Section: Resultssupporting

confidence: 72%

Sonoelectroanalysis: investigation of bismuth-film-modified glassy carbon electrodes

Banks¹,

Kruusma²,

Hyde³

et al. 2004

Analytical and Bioanalytical Chemistry

View full text Add to dashboard Cite

show abstract

“…In this report the mercury nanodroplet array modified glassy carbon electrode was prepared using a method adopted from Davis et al [9] whereby the repeated stripping/deposition of the mercury film produces a random array of mercury nanodroplets on the electrode surface. Mercury was electrodeposited onto the glassy carbon electrode by poising the potential at À 1.0 V vs. SCE for 15 s in a solution of 1.25 Â 10 À2 M Hg(NO 3 ) 2 containing 10 mM HNO 3 /0.1 M KNO 3 .…”

Section: Introductionmentioning

confidence: 99%

The Convenient Determination of Palladium at a Solid Electrode via Adsorptive Stripping Voltammetry at a Glassy Carbon Electrode Modified with a Random Array of Mercury Nanodroplets

et al. 2008

View full text Add to dashboard Cite

The detection of palladium using adsorptive stripping voltammetry reported by Wang et al. (J. Wang, K. Varughese Anal. Chim. Acta 1987, 199, 185 [3]) at a hanging mercury drop electrode is extended to a more convenient solid electrode. To this end a random array of 3.5×108 mercury nanodroplets per cm2 (65 nm average diameter) was electrodeposited on a glassy carbon substrate. Adsorptive stripping voltammetry was performed using 2×10-4 M dimethylglyoxime as a chelating agent for the Pd(II) ion, with accumulation at -0.20 V vs. SCE for 120 s and a linear detection range of 5–150 µM was determined with a limit of detection of 1.6 µM

show abstract

“…The capabilities of square-wave anodic stripping voltammetry intensified by ultrasound to detect and estimate the lead in saliva are discussed [5]. The increase in stability of mercury film electrodes under high-frequency (500 kHz) ultrasonic machining [6] is noted. The review of the analysis of physical processes responsible for mass transfer variations under ultrasonic machining of electrodesolution system is given [7].…”

Section: Introductionmentioning

confidence: 99%

The Stripping Voltammetry In High Frequency Electromagnetic Field

2005

View full text Add to dashboard Cite

The effectiveness of high frequency electromagnetic field influence on the analytical signal value in the stripping voltammetry method depending on such factors as the nature and concentration of the defined element, nature and concentration of the supporting electrolyte and agitation velocity has been studied. It has been demonstrated that an analytical signal increase may be achieved that allows one to lower a detection limit and to reduce the time of individual definition. The highest peak current is observed at some definite frequencies of the exterior field depending on the nature of the element and on the supporting electrolyte as well.

show abstract

Untitled

Cited by 8 publications

References 13 publications

Sonoelectroanalysis: investigation of bismuth-film-modified glassy carbon electrodes

Sonoelectroanalysis: investigation of bismuth-film-modified glassy carbon electrodes

The Convenient Determination of Palladium at a Solid Electrode via Adsorptive Stripping Voltammetry at a Glassy Carbon Electrode Modified with a Random Array of Mercury Nanodroplets

The Stripping Voltammetry In High Frequency Electromagnetic Field

Contact Info

Product

Resources

About