Can I read Long-lived sensors with replaceable surface for stripping voltammetric analysis: Part I on EtoBox?

Long-lived sensors with replaceable surface for stripping voltammetric analysis: Part I by Kh.Z Brainina; A.V Ivanova; R.M Khanina is a scholarly article available to read on EtoBox.

What is Long-lived sensors with replaceable surface for stripping voltammetric analysis: Part I about?

This study was inspired by the need of solving main problems of stripping voltammetry involving a short lifetime of electrodes, the necessity of mechanical regeneration of their surface and toxicity of mercury. The proposed electrodes (sensors) consist of a tungsten wire or a carbon-containing filament (thread). The latter was modified using one of the following methods: electroplating with mercury "in situ" or beforehand, or deposition of an insoluble mercury-organic complex on the filament surface beforehand and electrochemical reduction of the complex during analysis. Rotating disk tungsten electrodes, impregnated graphite disk electrodes and thick-film graphite electrodes were used to choose the solution composition and potential waveforms, and to compare the efficiency of the proposed sensor and earlier sensors. It was shown that long-lived mercury-free tungsten electrodes may serve to determine copper ions over the concentration interval from 10 to 1000 g l -1 . The carbon-containing filament may be used to determine copper, lead and cadmium concentrations at the level of g l -1 . A total of 10 measurements can be made using one and the same section of the electrode. Relative

Author

Kh.Z Brainina; A.V Ivanova; R.M Khanina

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0003-2670)

Published

2001

Language

EN