"Rhodium and Its Compounds in Amperometric Biosensors Based on Redox Enzymes"@en . . "227025" . . "Rhodium and Its Compounds in Amperometric Biosensors Based on Redox Enzymes" . "P(GA203/08/1536), Z(MSM0021627502)" . "CS - St\u00E1tn\u00ED svaz Srbska a \u010Cern\u00E9 Hory" . "000285788700018" . "Kotzian, Petr" . . . . "[2103E773092C]" . "Kalcher, Kurt" . "Catalytic properties of rhodium and some of its salts, namely, RhO2, Rh2O3 and chlorobis(2-phenylpyridine)rhodium(III) dimer (CFPRD) were tested as mediators/catalysts of electron transfer in electrochemical biosensors for the determination of glucose. Measurements were realized using flow injection system and screen-printed carbon electrodes containing glucose oxidase as a model redox enzyme. Sensors with RhO2 was found the best exhibiting a linear increase of the amperometric signal for glucose concentrations in the range of 5.5x10-5 - 1.4x10-3 M with a detection limit of 2.2x10-5 M under optimized flow rate of 0.2 mL min-1 in 0.1 M phosphate buffer (pH 7.5) carrier. A metal rhodium-based sensor exhibited a linear increase in the range of 2.8x10-4 - 1.4x10-3 M, a sensor modified with Rh2O3 showed similar linear dependence in the range of 1.4x10-3 - 5.5x10-3 M. Concerning sensors modified with CFPRD, a linear concentration dependence was observed in the range of 5.5x10-3 - 2.8x10-2 M." . "5"^^ . . . "Rhodium and Its Compounds in Amperometric Biosensors Based on Redox Enzymes" . "1452-3981" . "1" . . . . . . "Polan, Vojt\u011Bch" . "Catalytic properties of rhodium and some of its salts, namely, RhO2, Rh2O3 and chlorobis(2-phenylpyridine)rhodium(III) dimer (CFPRD) were tested as mediators/catalysts of electron transfer in electrochemical biosensors for the determination of glucose. Measurements were realized using flow injection system and screen-printed carbon electrodes containing glucose oxidase as a model redox enzyme. Sensors with RhO2 was found the best exhibiting a linear increase of the amperometric signal for glucose concentrations in the range of 5.5x10-5 - 1.4x10-3 M with a detection limit of 2.2x10-5 M under optimized flow rate of 0.2 mL min-1 in 0.1 M phosphate buffer (pH 7.5) carrier. A metal rhodium-based sensor exhibited a linear increase in the range of 2.8x10-4 - 1.4x10-3 M, a sensor modified with Rh2O3 showed similar linear dependence in the range of 1.4x10-3 - 5.5x10-3 M. Concerning sensors modified with CFPRD, a linear concentration dependence was observed in the range of 5.5x10-3 - 2.8x10-2 M."@en . . "RIV/00216275:25310/11:39892608!RIV12-GA0-25310___" . . "Rhodium and Its Compounds in Amperometric Biosensors Based on Redox Enzymes"@en . "RIV/00216275:25310/11:39892608" . . "6" . . "2"^^ . "Vyt\u0159as, Karel" . "9"^^ . . "Glucose oxidase; Glucose; Rhodium and its compounds; Screen-printed carbon electrodes; Amperometric biosensors"@en . "25310" . . "Soukup, Jan" . . . "International Journal of Electrochemical Science" . .