A turn-on fluorescent indicator for citrate with micromolar sensitivity.
نویسندگان
چکیده
A turn-on fluorescent indicator for citric acid (citrate) has been developed, displaying high emission enhancement (+1500%) and low interference by other carboxylates. The sensor is based on the non-emissive copper(II) complex of a fluorescent amino amide, which, upon addition of citrate decomplexates to yield the emissive ligand. The detection limit estimated for this new chemosensing system is about 0.5 microM. This novel approach to the analysis of citrate constitutes an alternative ca. 10(2)-10(3) times more sensitive than the standard method based on the enzyme citrate lyase.
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عنوان ژورنال:
- Dalton transactions
دوره 36 شماره
صفحات -
تاریخ انتشار 2007