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

SUMMARY Two procedures, based on atomic absorption techniques, were developed for the determination of the lead content in the atmosphere. The sensitivity of the conventional flame technique was increased by the application of a complex forming agent (tartaric acid). The „arc flame" technique developed by the authors was applied to the solution of the above problem. The two techniques will be good complementaries: the solution technique has an optimum measurement range of 2 to 13 ug of Pb whereas the solid-sample technique was found to yield optimum results between 0,4 and 2,0^ of Pb. The deviations of the test results are about 10 and 5 relative per cent with the solid-sample and the solution techniques, respectively. However, the solidsample technique offers a considerably quicker procedure. arc chamber cyclori« Block diagram of solid-sample apparatus Absórbeme» irte.) A

(¡ht»or.) - 207 210 203 203 2,5 fig Pb Records of solid-sample tests