Synthesis, characterization and application of ion imprinted poly(vinylimidazole) for zinc ion extraction/preconcentration with faas determination
Autor: | Talitha Oliveira Germiniano, Vivian da Silva Santos, Marcos A. Bezerra, Giovana de Fátima Lima, Kristiany Moreira Diniz, Mariana Gava Segatelli, Queila O. dos Santos, César Ricardo Teixeira Tarley |
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Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Química Nova v.37 n.1 2014 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ Química Nova, Vol 37, Iss 1, Pp 63-68 (2014) Química Nova, Volume: 37, Issue: 1, Pages: 63-68, Published: 2014 |
ISSN: | 0100-4042 |
DOI: | 10.1590/s0100-40422014000100012 |
Popis: | In this paper, we describe the synthesis of an ion imprinted polymer (IIP) by homogeneous polymerization and its use in solid-phase to extract and preconcentrate zinc ions. Under optimal conditions (pH 5.0, preconcentration flow rate of 12.0 mL min-1, and eluted with 1.0 mol L-1 HNO3) this procedure allows the determination of zinc with an enrichment factor of 10.2, and with limits of detection and quantification of 1.5 and 5.0 µg L-1, respectively. The accuracy of our results was confirmed by analysis of tap water and certified reference materials: NIST 1570a (Spinach leaves) and NIST 1515 (Apple leaves). |
Databáze: | OpenAIRE |
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