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中文摘要：
利用螺吡喃（Spiropyran，SP）一部花青（Merocyanine，MC）的光致异构特性，赋予金属离子光纤传感敏感材料可逆性，近年来已成为研究热点。综述了螺吡喃及其衍生物用作金属离子传感材料的研究进展，分析了SP类金属离子敏感材料在可逆性、检测灵敏度和选择性方面的优势与不足，并展望了其研究前景。
英文摘要：
The sensing and detection of metal ions are significant to environmental protection, and sensor＇s reversibility is the premise for utility. Spiropyran （SP） and merocyanine （MC） is a pair of optical isomer, for which the optical switching behavior can endow sensor with reversibility as SP exposed to ultraviolet （UV） light switches to MC form which can reversibly combine with metal ions. The recent progresses are reviewed, and analysis about the merits and demerits of SP and derivative in terms of reversibility, sensitivity and selectivity are involved.
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