A new procedure for the construction of flow-through optodes. Application to determination of copper (II)

Authors
Sanchez-Pedreno, C Ortuno, JA Albero, MI Garcia, MS de las Bayonas, JCG
Citation
C. Sanchez-pedreno et al., A new procedure for the construction of flow-through optodes. Application to determination of copper (II), FRESEN J AN, 366(8), 2000, pp. 811-815
Citations number
24
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
09370633 → ACNP
Volume
366
Issue
8
Year of publication
2000
Pages
811 - 815
Database
ISI
SICI code
0937-0633(200004)366:8<811:ANPFTC>2.0.ZU;2-0
Abstract
A new procedure for constructing an optical fibre reflectance, bulk optode membrane type, sensor is presented. The optode membrane consists of a plast icized poly (vinyl chloride) membrane in which the ionophore is dissolved, entrapped in a cellulose support. The new optode with the dye indicator 1-( 2-pyridylazo)-2-naphthol (PAN) was incorporated in a new flow-through cell and the injection system was optimized to determine Cu (II) at 567 nm in th e range 5 x 10(-5)-10(-3) M. The response was reproducible and the optode c an be regenerated using 10(-2) M EDTA followed by water. The method was app lied to the determination of copper in real samples.