The petentiometric determination of peroxide hydrogen and glucose on the glassy electrode modified by the calix[4]arene.
A new petentiometric method to determine peroxide hydrogen and glucose had been studied. This method had been applied on the petentiometric determination of peroxide hydrogen and glucose in the total ionic strength adjustment buffer (TISAB) (pH 7.5) solution with the glassy electrode modified by the calix[4]arene. The glassy carbon electrode covered with the calix[4]arene depended on the H(2)O(2) concentration in the range of log[H(2)O(2)] from -3.3 to -1.2 in the solution of TISAB (pH 7.5) with nearly Nernstian slope of about 65.6+/-3 mV and the detection limit of peroxide hydrogen was 4.0x10(-5) mol L(-1). The glassy carbon electrode covered with the calix[4]arene depended on the glucose concentration in the range of log[glucose] from -3.6 to -2.8 in the solution of TISAB (pH 7.5) with nearly Nernstian slope of about 50.2+/-2 mV and the detection limit of glucose was 2.0x10(-5) mol L(-1). The electrode had the good selectivity, sensitivity, stability and repeatability.
Jin
Gendi
G
College of Chemistry and Engineering, Yangzhou University, Yangzhou, China.
Du
Shi
S
Hu
Xiaoya
X
D015374:Biosensing Techniques / Q000295:instrumentation / Q000379:methods; D001786:Blood Glucose / Q000032:analysis / Q000737:chemistry; D047250:Calixarenes / Q000737:chemistry*; D017097:Electric Impedance; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods*; D004566:Electrodes; D005898:Glass; D005947:Glucose / Q000032:analysis* / Q000737:chemistry; D006801:Humans; D006861:Hydrogen Peroxide / Q000032:analysis* / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D018625:Microscopy, Atomic Force; D015394:Molecular Structure; D015203:Reproducibility of Results
D001786:Blood Glucose; D047250:Calixarenes; D006861:Hydrogen Peroxide; D005947:Glucose