Ozdemir, SadinOkumus, VeysiDundar, AbdurrahmanCelik, Kadir SerdarYuksel, UyanKilinc, Ersin14.07.20192019-07-1614.07.20192019-07-162014Özdemir, S., Okumuş, V., Dündar, A., Çelik, K. S., Yüksel, U., & Kılınç, E. (2013). Selective preconcentration of Lanthanum(III) byCoriolus versicolorimmobilised on Amberlite XAD-4 and its determination by ICP-OES. International Journal of Environmental Analytical Chemistry, 94(6), 533–545. https://doi.org/10.1080/03067319.2013.8314120306-73191029-0397https://dx.doi.org/10.1080/03067319.2013.831412https://hdl.handle.net/20.500.12514/1406Coriolus versicolor, a wood fungus, was immobilised on Amberlite XAD-4 and used as solid-phase biosorbent for preconcentrations of rare earth elements. La(III), Th(IV), U(IV) and Ce(III) were subjected to solid-phase extraction procedure. We observed that La(III) was selectively preconcentrated, while other ions remained in solution at pH 6.0. 5.0mL of 1.0molL(-1) HCl was used to elaute La(III) from column. 250mg of C. versicolor loaded on 1000mg of XAD-4 was optimised as solid-phase matrix. Concentrations of ions in solutions were determined by inductively coupled plasma- optical emission spectrometry (ICP-OES). The calibration plot after preconcentration was linear in the range from 1.0 to 50.0ngmL(-1) for La(III). Limit of detection was found as 0.27ngmL(-1) for La(III) by SPE method. Relative standard deviation was found lower than 6.7% for 1.0ngmL(-1) of La(III) solution (n=10). The sensitivity of ICP-OES was improved by a factor of 46.8. The applicability of the method was validated through the analysis of certified reference samples of tea (NCS ZC-73014) and spinach (NCS ZC-73013).en10.1080/03067319.2013.831412info:eu-repo/semantics/closedAccessLanthanumrare earth elementssolid-phase extractionselective preconcentrationCoriolus versicolorArticle946533545Q3Q3WOS:0003340651000012-s2.0-84897398053