caa a22 4500 445879564 CHVBK 20180317145538.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00604-010-0516-9 doi (NATIONALLICENCE)springer-10.1007/s00604-010-0516-9 Preconcentration of erbium(III) ions from environmental samples using activated carbon modified with benzoyl hydrazine [Elektronische Daten] [Qihui Wang, Xijun Chang, Zheng Hu, Dandan Li, Ruijun Li, Xiaoli Chai] A method was established for the preconcentration of trace concentrations of Er(III) ion using activated carbon modified with benzoyl hydrazine. Parameters affecting solid-phase extraction such as pH value, shaking time, flow rate, sample volume were systematically studied. At a pH of 3.0, the maximum static adsorption capacity of the sorbent is 59.8mgg−1 for Er(III), and the time for quantitative adsorption (>95%) is as short as 2min. The adsorbed Er(III) was quantitatively eluted with 2mL of 1.0M hydrochloric acid and then determined by inductively coupled plasma optical emission spectrometry. The limit of detection (3σ) is 73ngg−1, and the relative standard deviation is <2.0% (n = 8). The method was validated by analyzing certified reference materials and successfully applied to the determination of trace Er(III) in environmental samples. Figure Activated carbon modified with benzoyl hydrazine (AC-BH) has been used for preconcentration of Er(III) ion. Parameters affecting solid-phase extraction were systematically studied. The important characteristics of AC-BH are its excellent adsorptive selectivity towards Er(III) over other ions, short extraction time, high adsorption capacity and high enrichment factor. Springer-Verlag, 2010 Activated carbon nationallicence Erbium nationallicence Benzoyl hydrazine nationallicence Solid-phase extraction nationallicence Inductively coupled plasma optical emission spectrometry nationallicence Wang Qihui Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut Chang Xijun Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut Hu Zheng Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut Li Dandan Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut Li Ruijun Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut Chai Xiaoli Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut Microchimica Acta Springer Vienna 172/3-4(2011-03-01), 395-402 0026-3672 172:3-4<395 2011 172 604 https://doi.org/10.1007/s00604-010-0516-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-010-0516-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Qihui Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Chang Xijun Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Hu Zheng Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Li Dandan Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Li Ruijun Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Chai Xiaoli Department of Chemistry, Lanzhou University, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 172/3-4(2011-03-01), 395-402 0026-3672 172:3-4<395 2011 172 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer