Smartphone-assisted fluorescence sensor based on iron-doped carbon dots for rapid detection of tert-butyl hydroquinone in edible oils.
Given the health risks of tert-butylhydroquinone (TBHQ), rapid, portable, selective, and sensitive quantification in edible oils is critical. With this in mind, a fluorescent "on-off-on" probe was developed based on rationally designed iron-doped carbon dots (CDs). The blue fluorescence of the CDs is quenched by Fe3+ i...