Abstract: Techniques of diffuse reflectance and fluorescence spectroscopy have been utilized for the development of new quantitative methods for the analysis of chlorine. The reflectance method involves the use of a dry reagent chemistry, prepared by immobilizing $sigma@-tolidine on a nylon 66 membrane, which is interrogated by means of optical fibers. Chlorine concentrations in the range 0-5 ppm can be measured with a limit of detection of 0.043 ppm. The fluorescence technique is demonstrated by the measurement of quenching of 9-vinylanthracene by chlorine. Efficient quenching of fluorescence of this dye is observed with a Stern-Volmer constant of 8667 M$+$MIN@7$/. The findings demonstrate the possibility of developing an analytical method for the determination of chlorine based on fluorescence quenching and optical fibers.!8
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机译：摘要：漫反射和荧光光谱技术已被用于开发氯的定量新方法。反射法涉及使用干试剂化学方法，该方法是通过将σ-甲苯胺固定在尼龙66膜上制备的，该尼龙66膜是通过光纤进行询问的。可以测量0-5 ppm范围内的氯浓度，检出限为0.043 ppm。通过测量氯对9-乙烯基蒽的猝灭来证明荧光技术。观察到该染料的荧光有效猝灭，其斯特恩-沃尔默常数为8667 M $ + $ MIN @ 7 $ /。这些发现表明开发基于荧光猝灭和光纤的氯测定分析方法的可能性。8
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