Studying the evaporation behavior of heavy metals by thermo-desorption spectrometry.
"Thermal desorption experiments" were carried out during which heavy metal evaporation was studied by on-line monitoring. This could be achieved by the use of a tubular furnace connected to a heavy metal detector, i.e. an ICP-OES (inductively coupled plasma optical emission spectrometer), by a specially designed and patented interface. The spectrograms typically had a time resolution of four different elements per minute using a conventional (sequentially operating) ICP-OES. This study shows how thermo-desorption spectrometry (TDS) can be applied to study the evaporation of high boiling substances, such as heavy metal and alkali metal compounds. The future scope of the method is discussed.
Ludwig
C
C
Paul Scherrer Institut, General Energy Research Department, Villigen PSI, Switzerland. christian.ludwig@psi.ch
Lutz
H
H
Wochele
J
J
Stucki
S
S
D017745:Incineration; D007700:Kinetics; D019216:Metals, Heavy / Q000737:chemistry*; D012722:Sewage / Q000737:chemistry*; D013057:Spectrum Analysis / Q000379:methods*; D013696:Temperature; D013816:Thermodynamics; D014835:Volatilization; D015032:Zinc / Q000737:chemistry
D019216:Metals, Heavy; D012722:Sewage; D015032:Zinc