caa a22 4500 467943915 CHVBK 20180405193735.0 cr unu---uuuuu 170328e20050101xx s 000 0 eng 10.1007/s10809-005-0010-4 doi (NATIONALLICENCE)springer-10.1007/s10809-005-0010-4 (NATIONALLICENCE)springer-10.1007/s10809-005-0045-6 Direct atomic absorption determination of mercury in drinking water and urine using a two-step electrothermal atomizer [Elektronische Daten] [Yu. Vil'pan, I. Grinshtein, A. Akatov, S. Gucer] A new method was developed for the direct electrothermal atomic absorption determination of mercury in drinking water and urine using double vaporization in a two-step atomizer with a purged vaporizer. In this method, a sample is placed in the vaporizer of a two-step atomizer, dried, and vaporized. The sample vapor is transferred to an unheated atomizer cell with a flow of argon and trapped by the inner surface of cell walls. This procedure can be performed repeatedly to preconcentrate mercury in the atomizer cell. Next, a portion of the sample transferred to the inner surface of the atomizer cell is revaporized and atomized by heating the atomizer cell of the two-step atomizer with a purged vaporizer, and the atomic absorption of mercury is measured. It was found that the degree of mercury transfer and trapping is as high as 100% at sufficiently high temperatures of primary vaporization, regardless of the material of the inner surface of the atomizer cell. The detection limits for mercury were 0.24 or 0.024 µ?g/L for drinking water at a sample volume of 100 µ L using a single sample transfer or the procedure repeated ten times, respectively, and 2.0 µ g/L for urine at a sample volume of 20 µ L and a single sample transfer. The accuracy of the results was confirmed by the analysis of certified mercury samples and samples with known additives. Pleiades Publishing, Inc., 2005 Vil'pan Yu Russian Research Center for Applied Chemistry, pr. Dobrolyubova 14, 197198, St. Petersburg, Russia aut Grinshtein I. Russian Research Center for Applied Chemistry, pr. Dobrolyubova 14, 197198, St. Petersburg, Russia aut Akatov A. Russian Research Center for Applied Chemistry, pr. Dobrolyubova 14, 197198, St. Petersburg, Russia aut Gucer S. Department of Chemistry, University of Uludag, 16059, Bursa, Turkey aut Journal of Analytical Chemistry Nauka/Interperiodica 60/1(2005-01-01), 38-44 1061-9348 60:1<38 2005 60 10809 https://doi.org/10.1007/s10809-005-0010-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10809-005-0010-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vil'pan Yu Russian Research Center for Applied Chemistry, pr. Dobrolyubova 14, 197198, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Grinshtein I. Russian Research Center for Applied Chemistry, pr. Dobrolyubova 14, 197198, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Akatov A. Russian Research Center for Applied Chemistry, pr. Dobrolyubova 14, 197198, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Gucer S. Department of Chemistry, University of Uludag, 16059, Bursa, Turkey aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 60/1(2005-01-01), 38-44 1061-9348 60:1<38 2005 60 10809 NATIONALLICENCE 856 40 https://doi.org/10.1007/s10809-005-0045-6 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer