ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Determination of Trace Lead in Human Urine Using Hanging Mercury Drop Semimicroelectrode Influence of Matrix Effect and its Elimination

Š. Mesároš, H. Hofbauerová, and D. Bustin

Department of Analytical Chemistry, Faculty of Chemical Technology, Slovak Technical University, CS-812 37 Bratislava

Abstract: Trace amounts of Pb were determined in human urine by anodic stripping voltammetry on hanging mercury drop electrode. Two types of electrodes were used: electrode of conventional dimension (r = 440 μm) and semimicroelectrode (r = 40 μm). Described is the possibility of simplification of the experiment and minimization of the sample volume and of time-consuming irradiation and deaeration by using the semimicroelectrode. Good precision and accuracy were obtained when using the simplified short procedure.

Full paper in Portable Document Format: 462a98.pdf

Chemical Papers 46 (2) 98–101 (1992)