Application of photothermal deflection spectroscopy for the
determination of iron(II) with ferrozine with sorption preconcentration on Silufol |
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| Authors: | A D Khrycheva D A Nedosekin M Yu Kononets M A Proskurnin S V Pakhomova W Faubel S Heissler |
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| Institution: | (1) Chemistry Department, M.V. Lomonosov Moscow State University, Leninskie Gory d. 1 Bldg. 3, 119992 GSP-2, Moscow, Russia;(2) P.P. Shirshov, Institute of Oceanology, Russian Academy of Sciences, Nakhimovsky prosp. 36, 117997 Moscow, Russia;(3) Water Technology and Geotechnology Division, Research Center Karlsruhe, Institute of Technical Chemistry, 76021 Karlsruhe, Germany |
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| Abstract: | Photothermal deflection spectroscopy was applied for
selective detection of the intensely coloured iron(II) chelate with
ferrozine on Silufol plates. The linearity range was 1×10-11 - 6×10-8 mol cm-2
of chelate at the plate surface, which corresponded to 1×10-9 - 4×10-6 M of chelate in
solution. The limits of detection and quantification are 8×10-12 and 20×10-12 mol cm-2
at the plate from 15 μL of test solution (0.5 nM and 1.5 nM in
solution, respectively), which corresponded to n ×10-18 mol absolute amounts of the chelate at the detection
zone. |
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