title: A trimethoprim-selective membrane electrode.
abstract: An electrode selective for trimethoprim is based on the ion-pair complex of trimethoprim with silicotungstate, and gives rapid response to change in trimethoprim concentration over the range 3 x 10(-5)-2 x 10(-2)M with a response slope of 51.0 +/- 1.5 mV/decade. No significant interferences are caused by sulpha-drugs. The electrode can be used for the potentiometric determination of trimethoprim.
authors.affiliation: New Material Research Institute, Department of Chemical Engineering, Hunan University, Changsha People's Republic of China.
authors.forename: S Z
authors.initials: SZ
authors.lastname: Yao
authors.forename: J
authors.initials: J
authors.lastname: Shiao
authors.forename: L H
authors.initials: LH
authors.lastname: Nie