Technikatörténeti szemle 10. (1978)

A MÉRÉS ÉS A MÉRTÉKEK AZ EMBER MŰVELŐDÉSÉBEN című konferencián Budapesten, 1976. április 27–30-án elhangzott előadások II. - Fodor P.–Kertai M.–Pólos L.: Atomabszorpciós méréstechnika és a környezetvédelem

P. FODOR*, M. KERTAI*

* AND L. POLOS * THE ATOMIC ABSORPTION MEASURING TECHNIQUE AND THE ENVIRONMENT PROTECTION In recent years, determinations of elements and compounds harmful to human health, and the increasing sensitivity of detection techniques have come more and more into the foreground. Generally, elements and compounds which are more prevalent in the pollution of the air mass encircling the earth have been determined by flame methods and most often, these procedures use the atomic absorption mode of observation. Ag, Be, Cd, Cr, Cu, Fe, Hg, Mn, Pb, Zn, V represent the majority of elements for which methods have been developed. The atomic absorption analysis of lead in air has received greater attention than any other element, primarily because of its presence in exhaust gases from automobiles. The authors of this paper also determined the lead content in floating dust polluting the atmosphere of Budapest. Sampling For sampling, a device was used which had been developed by Fehér et al[l]at the Central Physics Research Institute. The device filters out the floating dust by driving the air through a Synpor

—3 membrane filter. The device is of portable design, two batteries of 1,2 V each providing the operational voltage. The samples were obtained at some of the busiest traffic centers of the city. Solution Measurement Technique Apparatus A SPEKTROMOM 190 A atomic absorption spectrophotometer was used for the determinations at the 217,0 nm resonance line of lead. * Department of General and Analytical Chemistry, Technical University, Budapest. * * MOM, Hungarian Optical Works, Budapest