title: Cobalt(II) selective membrane electrode based on palladium(II) dichloro acetylthiophene fenchone azine.
abstract: A new cobalt(II) ion selective electrode based on palladium(II) dichloro acetylthiophene fenchone azine(I) has been developed. The best membrane composition is found to be 10:60:10:21.1 (I)/PVC/NaTPB/DOP (w/w). The electrode exhibits a Nerstian response in the range of 1.0 × 10(-1)-1.0 × 10(-6)M with a detection limit and slope of 8.0 × 10(-7)M and 29.6 ± 0.2 mV per decade respectively. The response time is within the range of 20-25s and can be used for a period of up to 4 months. The electrode developed reveals good selectivity for cobalt(II) and could be used in pH range of 3-7. The electrode has been successfully used in the determination of cobalt(II) in water samples.
authors.affiliation: Chemistry Department, Faculty of Science and Mathematics, Sultan Idris Education University, 35900 Tg. Malim, Perak, Malaysia. illyas@upsi.edu.my
authors.forename: I M
authors.initials: IM
authors.lastname: Isa
authors.forename: S
authors.initials: S
authors.lastname: Mustafar
authors.forename: M
authors.initials: M
authors.lastname: Ahmad
authors.forename: N
authors.initials: N
authors.lastname: Hashim
authors.forename: S A
authors.initials: SA
authors.lastname: Ghani
mesh_terms: D001892:Camphanes; D003035:Cobalt / Q000032:analysis*; D055664:Electrochemical Techniques / Q000295:instrumentation*; D004566:Electrodes; D006843:Hydrocarbons, Chlorinated / Q000737:chemistry; D007477:Ions / Q000032:analysis; D008567:Membranes, Artificial; D009636:Norbornanes / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013876:Thiophenes / Q000737:chemistry*; D014867:Water / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D001892:Camphanes; D006843:Hydrocarbons, Chlorinated; D007477:Ions; D008567:Membranes, Artificial; D009636:Norbornanes; D013876:Thiophenes; D014874:Water Pollutants, Chemical; D014867:Water; C027327:fenchone; D003035:Cobalt; C508419:2-acetylthiophene; D010165:Palladium