Disposable optochemical sensor for the determination of chlorine concentrations in the ppb-range
Disposable optochemical sensor for the determination of chlorine concentrations in the ppb-range
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DOI：
10.1016/s0925-4005(97)00217-7
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发表时间：
1997-10
影响因子：
8.4
通讯作者：
M. Ralfs;J. Heinze
中科院分区：
文献类型：
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作者：
M. Ralfs;J. Heinze
通过将氧化还原指示剂4,4′-二氨基-3,3′-二甲基联苯（邻苯胺）固定在有机硅-聚碳酸酯共聚物膜上，研制了一种测定氯浓度的光化学传感器。一次性传感器是通过在小玻璃片上涂上含染料薄膜制成的。对0.05 ~ 5.0 ppm的氯浓度进行了测定。通过这种方法，得到了氯浓度与传感器响应之间线性相关的校准图。通过应用动力学解释方法，使传感器响应分析的时间最小化。
An optochemical sensor for the determination of chlorine concentrations has been developed by immobilizing the redox indicator 4,4′-diamino-3,3′-dimethylbiphenyl (o-tolidine) in a silicone–polycarbonate copolymer membrane. Disposable sensors were obtained by coating small glass sheets with thin films of the dye containing membrane. The determination of chlorine concentrations between 0.05 and 5.0 ppm has been carried out. By this a calibration plot with a linear correlation between the chlorine concentrations and the respective sensor responses was obtained. The time for the analysis of the sensor response has been minimized by the application of a kinetical interpretation method.