Issue 8, 1992

Analytical characteristics in electrothermal atomization studies of cadmium, copper, germanium, molybdenum, lead and vanadium from pyrolytic and tungsten coated L'vov platforms by atomic absorption spectrometry

Abstract

A physical vapour deposition–sputter ion plating method was used to coat new and exhausted pyrolytic graphite platforms of different designs. Tungsten carbide was sputtered onto the surfaces of the platforms and the analytical performance of Cu, Cd, Pb, Ge, V and Mo were tested on the tungsten-coated surfaces and compared with that obtained with standard pyrolytic graphite platforms. Exhausted platforms can be recuperated by the proposed procedure with sensitivities comparable to those obtained from the new pyrolytic platforms, with the exception of V and Mo. An increment in the pyrolysis temperature for the volatile elements Cd and Pb and the improvement in sensitivity for Ge are the major advantages of the tungsten-coated surfaces. The coating system has the advantage that several platforms can be coated simultaneously.

Article information

Article type
Paper

J. Anal. At. Spectrom., 1992,7, 1273-1280

Analytical characteristics in electrothermal atomization studies of cadmium, copper, germanium, molybdenum, lead and vanadium from pyrolytic and tungsten coated L'vov platforms by atomic absorption spectrometry

Z. Benzo, C. Cecarelli, N. Carrion, M. A. Alvarez, C. Rojas and M. Rosso, J. Anal. At. Spectrom., 1992, 7, 1273 DOI: 10.1039/JA9920701273

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements