The optical properties of several hydrogen-bond acidic sorbent materials are evaluated in situ to assess their suitability for waveguide-enhanced Raman spectroscopy (WERS) of vapor-phase organophosphonates. A number of characteristics critical to WERS are evaluated for each sorbent: infrared absorption, Raman spectral background, and the limit of detection for a test hydrogen-bond-basic analyte (dimethyl methylphosphonate, DMMP). We describe the chemical properties of the sorbents that differentiate their optical properties for sensing. Then, we introduce a sorbent figure-of-merit that quantifies these differences and provides a framework to assess the quality of newly developed sorbent materials.

中文翻译：

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波导增强拉曼光谱的氢键酸性吸附剂的品质因数表征。

对几种氢键酸性吸附剂材料的光学性能进行了原位评估，以评估其对气相有机膦酸酯的波导增强拉曼光谱（WERS）的适用性。对于每种吸附剂，评估了许多对WERS至关重要的特性：红外吸收，拉曼光谱背景和测试氢键碱性分析物（甲基膦酸二甲酯，DMMP）的检出限。我们描述了吸附剂的化学性质，以区分它们的传感光学性质。然后，我们介绍了一种吸附剂品质因数，可以量化这些差异并提供一个评估新开发的吸附剂材料质量的框架。