A simple aqueous host:guest sensing array can selectively discriminate between different types of citrus varietal from peel extract samples. It can also distinguish between identical citrus samples at varying stages of ripening. The discrimination effects stem from detection of changes in the terpenoid composition of the peel extracts by the host:guest array, despite the overwhelming excess of a single component, limonene, in each sample. The hosts are insensitive to limonene but bind other monoterpenes strongly, even though they are similar in structure to the major limonene component. This work demonstrates the capability of host:guest arrays in sensing target molecules in environments with the competing agents present at high abundances in the sample matrix.

中文翻译：

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客体传感阵列对柑橘皮中萜烯的光学辨别

简单的水性宿主：客体传感阵列可以从果皮提取物样品中选择性地区分不同类型的柑橘品种。它还可以区分不同成熟阶段的相同柑橘样品。区分效果源于宿主：客体阵列对果皮提取物萜类成分变化的检测，尽管每个样品中单一成分柠檬烯过量。宿主对柠檬烯不敏感，但与其他单萜强烈结合，即使它们在结构上与主要柠檬烯成分相似。这项工作展示了宿主：客体阵列在样品基质中存在高丰度竞争剂的环境中感测目标分子的能力。