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于双臂光纤公共端涂布以PVC、结晶紫内酯、双酚A,对硝基酚等组成的敏感膜,用于检测水溶液中乙醇的含量,测定乙醇的线性范围为4.0～20.0％(v/v),响应时间为4min,重现性和稳定性良好,并对酒类样品中乙醇的含量进行了测定,获得了满意的结果。
In the common arm of the double-arm optical fiber, a sensitive membrane composed of PVC, crystal violet lactone, bisphenol A and p-nitrophenol was coated to detect the content of ethanol in the aqueous solution. The linear range of the determination of ethanol was 4.0-20.0% v / v), the response time was 4min, the reproducibility and stability were good, and the content of ethanol in the wine sample was determined. The satisfactory results were obtained.