Abstract
The possibility of the use of two reagents for the determination of two elements from one sample on one disk of fibrous sorbent was studied. Vanadium(V) and molybdenum(VI) are sorbed on a disk of an anionexchange fibrous material and, next, sequentially detected by diffuse reflection spectrometry with 8-hydroxyquinoline-5-sulfonic acid and phenylfluorone. It was demonstrated that vanadium and molybdenum can be determined when present simultaneously in ratios from 1 : 10 to 10 : 1 in the concentration range 0.01-0.15 ώg/mL (RSD < 15%). The detection limit is 0.005 and 0.003 ώg/mL for vanadium and molybdenum, respectively.
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Shvoeva, O.P., Dedkova, V.P. & Savvin, S.B. Method of two reagents on a solid phase for the determination of simultaneously present vanadium(V) and molybdenum(VI). J Anal Chem 55, 545–548 (2000). https://doi.org/10.1007/BF02757809
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DOI: https://doi.org/10.1007/BF02757809