Novel fiber tip sensor potentially suitable for gastric pH measurement

F. Baldini, G. Ghini, A. Giannetti, F. Senesi, C. Trono
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Abstract

Monitoring pH for long periods, usually 24 h, in the stomach and in the esophagus may be essential in the diagnosis of gastro-esophageal diseases. The clinical range of interest is quite extended, between 1 to 8 pH units. Methyl red, after its covalent immobilization on controlled pore glass (CPG), is characterized by a working range which fits well with the clinical one. A novel probe, suitable for gastro-esophageal applications, was designed in order to optimize the performances of the colored CPG. This leads to a very simple probe configuration characterized by a very fast response.
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新型光纤尖端传感器可能适用于胃pH值测量
长时间(通常为24小时)监测胃和食道内的pH值可能是诊断胃-食道疾病所必需的。感兴趣的临床范围相当广泛,在1至8 pH单位之间。甲基红在可控孔玻璃(CPG)上共价固定后,具有与临床吻合的工作范围。为了优化有色CPG的性能,设计了一种适用于胃食管的新型探针。这导致了一个非常简单的探针配置,其特点是响应非常快。
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