The petentiometric determination of peroxide hydrogen and glucose on the glassy electrode modified by the calix[4]arene |
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Authors: | Gendi Jin |
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Institution: | College of Chemistry and Engineering, Yangzhou University, 88 South University Avenue, Yangzhou 225002, China |
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Abstract: | 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 calix4]arene. The glassy carbon electrode covered with the calix4]arene depended on the H2O2 concentration in the range of logH2O2] 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 4.0 × 10−5 mol L−1. The glassy carbon electrode covered with the calix4]arene depended on the glucose concentration in the range of logglucose] 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 2.0 × 10−5 mol L−1. The electrode had the good selectivity, sensitivity, stability and repeatability. |
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Keywords: | Calix[4]arene Glassy carbon electrode Peroxide hydrogen Glucose Petentiometric determination |
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