Atomization efficiency of a Massmann-type graphite furnace.
The atomization efficiency of the Perkin-Elmer HGA-400 for the production and containment of atomic vapour has been determined for Al, Co, Au, Ni, Fe, Ag, Ga and Cu by a method developed under non-isothermal conditions. The method takes into account the residence time and the shape of the absorbance signal profile. It is based on the entire absorption signal profile rather than on any part of it. The uncertainty in the method arises from calculation of the rate constant of atom loss due to temperature gradient which has a pronounced effect on the "effective" length of the analysis path when the atomizer is operated under non-isothermal conditions. The average value of the atomization efficiency for the eight elements used for this study was found to be about 0.10.
Cathum
S J
SJ
Centre for Analytical and Environmental Chemistry, Department of Chemistry, Carleton University, Ottawa, Ontario, Canada K1S 5B6.