caa a22 4500 465748384 CHVBK 20180323111826.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00323419 doi (NATIONALLICENCE)springer-10.1007/BF00323419 Generation and enrichment of AsCl3 for interference-free determination of trace levels of arsenic in steel by atomic absorption spectrometry [Elektronische Daten] [Solomon Tesfalidet, Knut Irgum] Summary: Arsenic was analysed after volatilization as arsenic trichloride, facilitated by evaporative concentration of hydrochloric acid. The generated gas was enriched in a cold trap and then revolatilized into a flame-in-tube atomizer for atomic spectrometric determination. No interference was observed at the 50 and 250 μg/l As levels when the potential interferents Ni, Co, Cu, and Fe were added at 5000 mg/l each, or as a mixture containing all ions at 1000 mg/l. Standardization against aqueous acidified As(III) solutions was therefore possible without the use of making agents. Analyses of five reference samples of various steel alloys showed good agreement with certified values. The detection limit for As was 3.9 μg/l in the dissolved sample, or 0.39 μg/g in the steel. Springer-Verlag, 1990 Tesfalidet Solomon Department of Analytical Chemistry, University of Umeå, S-90187, Umeå, Sweden aut Irgum Knut Department of Analytical Chemistry, University of Umeå, S-90187, Umeå, Sweden aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/6(1990-01-01), 741-744 0937-0633 338:6<741 1990 338 216 https://doi.org/10.1007/BF00323419 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00323419 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tesfalidet Solomon Department of Analytical Chemistry, University of Umeå, S-90187, Umeå, Sweden aut NATIONALLICENCE 700 1- Irgum Knut Department of Analytical Chemistry, University of Umeå, S-90187, Umeå, Sweden aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/6(1990-01-01), 741-744 0937-0633 338:6<741 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer