Determination of hafnium in air dust filters by inductively coupled plasma atomic emission spectrometry.
The procedure of hafnium determination in workplace air has been elaborated, which allows its determination at the level starting from 0.125 mg m(-3), which for a 400 1 sample corresponds to the requirement for maximal allowable concentration. The method is based on excitation of the mineralized filter containing the analyte in inductively coupled plasma.
Hulanicki
A
A
Department of Chemistry, University of Warsaw, Warsaw, Poland.
Surgiewicz
J
J
Jaron
I
I