Sensor for Hydrogen Peroxide Based on Prussian Blue Modified Electrode. Improvement of the Operational Stability.
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- MATTOS Ivanildo Luiz de
- Departamento de Química, Faculdade de Ciências, UNESP
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- GORTON Lo
- Department of Analytical Chemistry, Lund University
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- RUZGAS Tautgirdas
- Department of Analytical Chemistry, Lund University
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- KARYAKIN Arkady A
- Department of Chemistry, M. V. Lomonosov Moscow State University
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Improvement of the operational stability of amperometric sensors based on Prussian Blue (PB) modified glassy carbon electrodes is presented. The long term performance of the sensors was evaluated by injection of hydrogen peroxide (5 µM in potassium buffer) solutions in a flow-injection system during a period of 5 - 10 h. The following parameters were investigated and correlated with the performance of the sensor: the times for electrodeposition and electrochemical activation, temperature, storage time, pH, composition of the buffer solution and of volume sample injected. These analytical characteristics of the modified electrode can be emphasized: initial sensitivity of 0.3 A cm-2 M-1 , detection limit of ca. 0.5 µM, precise results (r.s.d.< 1.5%) and possibility to carry out around 50 samples (50 µL) per hour.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 16 (8), 795-798, 2000
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679234082176
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- NII論文ID
- 10005306916
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DC%2BD3cXmtFygu70%3D
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- ISSN
- 13482246
- 09106340
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- NDL書誌ID
- 5501415
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可