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Title: | Construção e avaliação de um eletrodo tubular sensível ao íon hidrogênio como detector em sistemas de análise em fluxo |
Keywords: | tubular pH electrode flow analysis tridodecylamine |
Issue Date: | 30-May-2013 |
Publisher: | Sociedade Brasileira de Química |
Description: | The construction of a tubular hydrogen ion-selective potentiometric electrode without inner reference solution, based on the tridodecylamine (TDDA) ionophore, and its evaluation in a flow system are described. TDDA was dissolved in 2-nitrophenyl octyl ether, dispersed in a PVC membrane and applied directly to a conducting support which consisted of an epoxy resin and graphite mixture. The electrode was designed with a tubular geometry to effort facilities to be coupled as part of a flow injection network. The main working characteristics such as response time, linear pH range, selectivity and life time were evaluated and compared with those obtained which a conventionally shaped electrode based on the same sensor. The electrode showed a slope of 51-52 mV dec-1 within a linear pH range from 4.0 up to 12.0. |
URI: | http://koha.mediu.edu.my:8181/jspui/handle/123456789/4190 |
Other Identifiers: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000200005 http://www.doaj.org/doaj?func=openurl&genre=article&issn=01004042&date=1998&volume=21&issue=2&spage=133 |
Appears in Collections: | Chemistry |
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