Determination of lead in solution by solid phase extraction, elution, and spectrophotometric detection using 4-(2-pyridylazo)-resorcinol

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Abstract

Lead (+2) was selectively adsorbed on a solid phase extraction (SPE) gel (molecular recognition technology, MRT), quantitatively extracted, and spectrophotometrically determined as the Pb(II)-PAR (4-(2-pyridylazo)- resorcinol) complex. The linear range was 0.01 to 0.75 mg L-1 and the detection limit was 6.4 μg L-1. The MRT-SPE allows selective Pb(II) extraction from complex ion-rich matrices, which is difficult with other techniques. Interference from common matrix ions such as Fe2+, Ni2+, Cu2+ or Co2+ is minimized. [Figure not available: see fulltext.] © 2013 Versita Warsaw and Springer-Verlag Wien.

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Rahman, I. M. M., Furusho, Y., Begum, Z. A., Sato, R., Okumura, H., Honda, H., & Hasegawa, H. (2013). Determination of lead in solution by solid phase extraction, elution, and spectrophotometric detection using 4-(2-pyridylazo)-resorcinol. Central European Journal of Chemistry, 11(5), 672–678. https://doi.org/10.2478/s11532-013-0203-x

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