Highly Specific Sulfadiazine Detection Using a Two-Dimensional Europium-Organic Coordination Polymer

Area of Science:

• Materials Science
• Analytical Chemistry
• Environmental Science

Background:

• Sulfadiazine (SFZ) is a widely used antibiotic, but its residues in food pose health risks.
• Detecting SFZ specifically is challenging due to interference from similar antibiotics.

Purpose of the Study:

• To develop a highly specific and sensitive method for detecting Sulfadiazine (SFZ) residues.
• To utilize a novel two-dimensional europium-organic coordination polymer for this detection.

Main Methods:

• Synthesis of a two-dimensional europium-organic coordination polymer.
• Characterization of the polymer's structure and stability.
• Luminescence-based detection of SFZ with analysis of quenching behavior.

Main Results:

• The coordination polymer demonstrated excellent luminescence and water stability.
• Highly specific and sensitive detection of SFZ in the range of 0-0.2 mM was achieved.
• The inner filter effect was identified as the mechanism for selective luminescence quenching.

Conclusions:

• The developed europium-organic coordination polymer enables highly specific and effective detection of SFZ.
• This method addresses the challenge of antibiotic residue monitoring in food.
• The material's stability and selectivity make it a promising tool for food safety analysis.