Abstract
Water quality monitoring was a basic work for water quality resource management, there were some problems in the current detection means for oily waste water, such as low measurement accuracy, off line detection, an so on. Based on the principle of surface plasmon resonance (SPR), a optical fiber sensor was designed, which could monitor the interaction of biological molecules online and real-time, with label-free, without separation and purification. It was a non-contact detection technology and it was easy to implement remote monitoring. The designed optical fiber SPR sensor system was tested through oily waste water with different concentrations. The experimental results showed that the optical fiber SPR sensing system could measure the oil in waste water with high accuracy, fast speed, and good stability, the method achieved on-line monitoring and improved the real-time of detection and the ease of operation.
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