Application of photothermal deflection spectroscopy for the determination of iron(II) with ferrozine with sorption preconcentration on Silufolстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация: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 x 10(-11) - 6 x 10(-8) mol cm(-2) of chelate at the plate surface, which corresponded to 1 x 10(-9) - 4 x 10(-6) M of chelate in solution. The limits of detection and quantification are 8 x 10(-12) and 20 x 10(-12) mol cm(-2) at the plate from 15 mu L of test solution (0.5 nM and 1.5 nM in solution, respectively), which corresponded to n x 10(-18) mol absolute amounts of the chelate at the detection zone.