Tb3+0.6/Eu3+0.4@Ni-BTC is a quantitative ratiometric fluorescence sensor for DPA detection with high sensitivity, anti-interference, rapid response and durability.
A new ratiometric fluorescence assay has been developed for the detection of sulfur dioxide derivatives with repeatability and selectivity. The assay was applied to quantitate HSO3− in cell lysates with accurate results.
A novel ratiometric fluorescence assay for cerebral Cu2+ has been developed based on coumarin-labeled single-stranded DNA coupled with the Cu2+-induced oxidation of o-phenylenediamine.