title: Perchlorate-selective membrane electrode based on a new complex of uranil.
abstract: A potentiometric ion-selective electrode based on new compound, as a carrier, has been successfully developed for detection of perchlorate anion in aqueous solution. Within the perchlorate ion concentration range 1.0x10(-6) to 1.0 mol L(-1) the electrode had a linear response with a Nernstian slope of 60.6+/-1.0 mV per decade . The limit of detection as determined from the intersection of the extrapolated linear segments of the calibration plot was 8.0x10(-7) mol L(-1). The proposed electrode has fairly a good discriminating ability towards ClO(4) (-) ion in comparison to other anions. The sensor has a response time of < or =10 s and can be used for at least 2 months without substantial divergence in potential. It was successfully applied to direct determination of perchlorate in urine and water.
authors.affiliation: Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran. mazloum@yazduni.ac.ir
authors.forename: M
authors.initials: M
authors.lastname: Mazloum Ardakani
authors.forename: M
authors.initials: M
authors.lastname: Jalayer
authors.forename: H
authors.initials: H
authors.lastname: Naeimi
authors.forename: H R
authors.initials: HR
authors.lastname: Zare
authors.forename: L
authors.initials: L
authors.lastname: Moradi