title: Sensitive turn-on fluorescent detection of tartrazine based on fluorescence resonance energy transfer.
abstract: We introduce a sensitive, rapid, label-free and general fluorescent method for the determination of tartrazine by competitive binding to reduced graphene oxide (rGO) against fluorescein, and the fluorescence recovery upon fluorescein desorption from rGO provides a quantitative readout for tartrazine, giving a detection limit of 0.53 ng mL(-1).
authors: Education Ministry Key Laboratory on Luminescence and Real-Time Analysis, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
authors: Sheng Tian
authors: ST
authors: Huang
authors: Yan
authors: Y
authors: Shi
authors: Nian Bing
authors: NB
authors: Li
authors: Hong Qun
authors: HQ
authors: Luo
mesh_terms: D000327:Adsorption; D001667:Binding, Competitive; D019793:Fluorescein / Q000737:chemistry / Q000378:metabolism*; D005453:Fluorescence; D031541:Fluorescence Resonance Energy Transfer / Q000379:methods*; D005504:Food Analysis / Q000379:methods*; D005505:Food Coloring Agents / Q000032:analysis*; D006108:Graphite / Q000737:chemistry / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D010087:Oxides / Q000737:chemistry / Q000378:metabolism; D012680:Sensitivity and Specificity; D013050:Spectrometry, Fluorescence; D013645:Tartrazine / Q000032:analysis*
chemical_list: D005505:Food Coloring Agents; D010087:Oxides; D006108:Graphite; D013645:Tartrazine; D019793:Fluorescein