Affiliation:
1. The Key Laboratory of the Inorganic Molecule‐Based Chemistry of Liaoning Province and Laboratory of Coordination Chemistry Shenyang University of Chemical Technology Shenyang Liaoning China
2. Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology North China Electric Power University Baoding Hebei China
3. Binzhou Institute of Technology Weiqiao‐UCAS Science and Technology Park Binzhou Shandong China
Abstract
ABSTRACTMilk, owing to its nutritional value, is a staple commodity in daily life. Ensuring its integrity and authenticity is paramount for researchers and the food industry. To evaluate spoilage and adulteration of milk, we proposed a robust and reliable optical method to guarantee milk quality by utilizing riboflavin as an internal biomarker. By precisely controlling the content of Eu3+, Tb3+, and Gd3+ ions, a two‐dimensional ratiometric luminescence lanthanide coordination polymer (Ln‐CP) with adjustable emission centers was synthesized for the detection of riboflavin (RF), leveraging a Förster resonance energy transfer (FRET) and photoinduced electron transfer (PET) process. This method demonstrates high sensitivity and selectivity towards RF and has been successfully applied to the detection of RF in both milk and calf serum.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Beijing Municipality