光纤传感检测水中氰化物的研制

Detection of cyanide in water with optical fiber sensor

目的 探讨光纤传感检测探头的原理 ,建立适应现场检测的方法。方法 水中CN-与茚三酮反应生成红棕色产物 ,光纤探头插入水样中进行测定。结果 检测浓度范围为 0 0 1～ 0 1mg/L ,最低检出限 0 0 1mg/L。结论 采用光纤传感测定水中氰化物 。

Objective To establish novel optic fiber sensor for detecting cyanide in water on the spot.Methods The reaction of ninhydrin and cyanide in water can produce a kind of red-brown products which can be detected by this new Optic fiber senser.Results The detection limition is 0.01?mg/L with a response range of 0.01-0.1?mg/L.Conclusion It provided a new method for detecting cyaniole on field and the spot to use optical fiber sensor.