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

作者：Rahman Ismail M M^*; Furusho Yoshiaki; Begum Zinnat A; Sato Rika; Okumura Hiroshi; Honda Hiroko; Hasegawa Hiroshi

来源：CENTRAL EUROPEAN JOURNAL OF CHEMISTRY, 2013, 11(5): 672-678.

DOI：10.2478/s11532-013-0203-x

• Lead
• 4-(2-pyridylazo)-resorcinol
• Colorimetric
• Interferences
• Solid phase extraction

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 A mu g 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.

• 出版日期2013-5