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Two new compounds (1 and 2) based on indole were successfully synthesized and characterized. They display highly selective response to F − in aqueous DMSO medium and pure DMSO with remarkable color and fluorescent changes. Therefore, both receptors may serve as colorimetric sensors for F − by visual detection.
Click chemistry was applied to immobilize three kinds of alkyne-carboxylic acids onto azide-modified silica gel to prepare three novel stationary phases for weak cation exchange chromatography (WCX). The developed protocol combines the benefits of operational simplicity, exceptionally mild conditions and high surface loadings. Six kinds of standard proteins were separated completely on the novel packings...
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