potentiometric sensors

“Electronic tongue” multi-systems for the separate determination of cefotaxime and cefazoline

Authors: Kulapina E. G., Dubasova A. Е., Kulapina O. I., Ankina V. D.

. Electroanalytical properties of unmodified and modified by polyaniline and by CuO nanoparticles solid-contact potentiometric sensors which are based on associates of tetradecylammonium with complex compounds of silver (I) with cephuroxime, cephotaxime and cephazoline Ag(β-lac)2TDA in solutions of corresponding antibiotics were studied. It was revealed that Ag(β-lac)2TDA –based sensors had no specificity to the basic ion but showed sensitivity to other cephalosporins.

Potentiometric Sensors for Determination of Cefepime in Water and Biological Environments

Authors: Kulapina O. I., Kulapina E. G., Karenko V. A.

Potentiometric cefepime sensors based on an organic ion-exchanger such as cefepime with tetraphenylborate are developed. The optimum membrane composition is established. The surface and volume properties of membranes are investigated. The constant of dissociation of the ion-exchanger in a membrane phase is calculated by stationary resistance. Potentiometric determination of cefepime in water and biological environments is present.