1998
DOI: 10.1016/s0003-2670(98)00313-4
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Selective separation of germanium(IV) by 2,3-dihydroxypropyl chitosan resin

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Cited by 80 publications
(34 citation statements)
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“…for S 1 and S 2 , respectively) and was found to be 152.2 and 127.1 mg·g −1 for S 1 and S 2 , respectively, what is higher than that of the previously studied chitosan resins (101 -106 mg·g −1 ) [9,28].…”
Section: Effect Of the Sample Volume And Dynamiccontrasting
confidence: 56%
See 1 more Smart Citation
“…for S 1 and S 2 , respectively) and was found to be 152.2 and 127.1 mg·g −1 for S 1 and S 2 , respectively, what is higher than that of the previously studied chitosan resins (101 -106 mg·g −1 ) [9,28].…”
Section: Effect Of the Sample Volume And Dynamiccontrasting
confidence: 56%
“…The preconcentration of germanium by sorption offers several advantages over other methods of concentration (e.g., liquid-liquid extraction), such as experimental convenience, low cost and usage of less toxic materials. To date, there are a few works related to the preconcentration of germanium on a solid substrate, for instance on Kelex-100 [29], nanometer sized TiO 2 /SiO 2 [3], TiO 2 [2,19], active carbon [32], cellulose [10], chitosan chelating resin [5,9], Sephadex gel [6], anionic resin (IRA-900) [31], goethite [33] and mercaptomodified silica gel [7]. However, most of the described sorbents have one or more of the following disadvantages: relatively low selectivity [2,19,27], low sorption capacity [32], low rate of sorption [5,32,33] or high cost of sorbent [2,3,30].…”
Section: Introductionmentioning
confidence: 99%
“…With this ratio (N/C), we can also obtain the degree of substitution (DS) in chitosan derivates, according to Inukai's equation (Inukai, Chinen, Matsuda, Kaida, & Yasuda, 1998).…”
Section: Elemental Analysismentioning
confidence: 99%
“…Os processos mais comumente empregados para esta finalidade são a extração líquido-líquido 41,42 e a troca iônica, em geral envolvendo sorventes sólidos/resinas de troca iônica [43][44][45][46][47] . Contudo, são conhecidas as vantagens e as limitações que tais procedimentos possuem quanto ao seu emprego 42,47 .…”
Section: Pré-concentração Em Ambiente Micelar Empregando a Metodologiunclassified