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
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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