HIGH-FREQUENCY SETUP FOR THE EMISSION SPECTRAL-ANALYSIS AND SMELTING OF PRECIOUS METALS

Authors
SUKOVATYI AG CHURILOV GN MALTSEVA SS
Citation
Ag. Sukovatyi et al., HIGH-FREQUENCY SETUP FOR THE EMISSION SPECTRAL-ANALYSIS AND SMELTING OF PRECIOUS METALS, Instruments and experimental techniques (New York), 41(5), 1998, pp. 719-722
Citations number
7
Categorie Soggetti
Instument & Instrumentation",Engineering
Journal title
Instruments and experimental techniques (New York) → ACNP
ISSN journal
00204412
Volume
41
Issue
5
Year of publication
1998
Pages
719 - 722
Database
ISI
SICI code
0020-4412(1998)41:5<719:HSFTES>2.0.ZU;2-D
Abstract
A setup for the emission spectral analysis and smelting of precious me tals is described. The system is based on a high-frequency current gen erator with the following parameters: power, 24 kW; voltage, 1500 V; c urrent, 16 A; frequency, 66 kHz. The emission spectra are excited by a plasmatron operated at a 10(-8) kg/K erosion rate of the consumable e lectrode. Both monolith and powdered samples are introduced directly i nto the discharge plasma. The detection threshold for Au is 10(-4)%. T he setup is capable of melting 20 kg (1 liter) of gold within 7.6 min.