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Highly Efficient Detection of Homologues and Isomers by Dynamic Swelling Reflection Spectrum.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-09-16 , DOI: 10.1021/acsami.0c12229 Yang Hu 1 , Yuqi Zhang 2 , Tong Chen 1 , Dongpeng Yang 1 , Dekun Ma 3 , Shaoming Huang 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-09-16 , DOI: 10.1021/acsami.0c12229 Yang Hu 1 , Yuqi Zhang 2 , Tong Chen 1 , Dongpeng Yang 1 , Dekun Ma 3 , Shaoming Huang 1
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Precise and efficient detection of solvents with similar refractive index is highly desired but remains a big challenge for the conventional opal because the shift of its reflection wavelength only depends on the refractive index of the solvent to be detected. Here, homologues (alcohols, acids, alkalis, esters, and aromatic hydrocarbons), isomers, and other solvents with similar refractive index and structures were precisely distinguished through the dynamic swelling reflection spectrum (DSRS) pattern based on the different swelling behavior of swellable photonic paper in solvents. The one reflection signal of photonic paper will split into two reflection peaks, which then tend to merge together during the swelling process. The variation of the reflection signals and merging time are highly sensitive to the polarity and refractive index of the solvent, and the differences can be significantly amplified in DSRS, resulting in the distinction of the solvent from its unique geometric pattern. Moreover, the variation tendency of the reflectance provides an additional parameter in recognition of the solvent, which can be explained by calculation and comparison of the practical volume ratio of the solvent swelled into the photonic paper and the corresponding critical volume ratio of the solvent determined by its refractive index.
中文翻译：
通过动态膨胀反射光谱高效检测同系物和异构体。
迫切需要精确而有效地检测具有相似折射率的溶剂，但是对于常规蛋白石来说，仍然是一个巨大的挑战，因为其反射波长的偏移仅取决于待检测溶剂的折射率。在此，根据可溶胀光子的不同溶胀行为，通过动态溶胀反射光谱（DSRS）模式精确区分了具有相似折射率和结构的同系物（醇，酸，碱，酯和芳香烃），异构体和其他溶剂纸在溶剂中。光子纸的一个反射信号将分成两个反射峰，然后在膨胀过程中趋于合并在一起。反射信号和合并时间的变化对溶剂的极性和折射率高度敏感，并且差异在DSRS中会显着放大，从而导致溶剂与独特的几何图案有所区别。此外，反射率的变化趋势为识别溶剂提供了一个额外的参数，这可以通过计算和比较溶入光子纸中的溶剂的实际体积比和相应的溶剂临界体积比来确定。它的折射率。
更新日期：2020-10-07
中文翻译：
通过动态膨胀反射光谱高效检测同系物和异构体。
迫切需要精确而有效地检测具有相似折射率的溶剂，但是对于常规蛋白石来说，仍然是一个巨大的挑战，因为其反射波长的偏移仅取决于待检测溶剂的折射率。在此，根据可溶胀光子的不同溶胀行为，通过动态溶胀反射光谱（DSRS）模式精确区分了具有相似折射率和结构的同系物（醇，酸，碱，酯和芳香烃），异构体和其他溶剂纸在溶剂中。光子纸的一个反射信号将分成两个反射峰，然后在膨胀过程中趋于合并在一起。反射信号和合并时间的变化对溶剂的极性和折射率高度敏感，并且差异在DSRS中会显着放大，从而导致溶剂与独特的几何图案有所区别。此外，反射率的变化趋势为识别溶剂提供了一个额外的参数，这可以通过计算和比较溶入光子纸中的溶剂的实际体积比和相应的溶剂临界体积比来确定。它的折射率。
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