Details

Autor(en) / Beteiligte

• Yang, Jing
• Li, Qian
• Xu, Canhui
• Li, Yujie
• Nie, Lizhen
• Liu, Chen
• Xiao, Xilin
• Nie, Changming
• Zhou, Xin
• Liao, Lifu

Titel

Detection of Zinc in Food Based on High-Stability Zinc Coordination Supramolecular Self-Assembled Polymerenhanced Resonance Light Scattering

Ist Teil von

• Journal of applied spectroscopy, 2023, Vol.89 (6), p.1232-1240

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The resonance light scattering method was used to study the coordination-driven self-assembly reaction of zinc with a bipolar tetradentate ligand and a bipolar bidentate ligand to form a supramolecular polymer. The bipolar tetradentate ligand was N,N’-bis(pyridoxal phosphate)-o-tetraminobiphenyl synthesized by the reaction of pyridoxal phosphate with biphenyltetramine, and the bipolar bidentate ligand was bis-phenanthroline-glutaraldehyde synthesized by the reaction of glutaraldehyde with 5-aminophe-nanthroline. The formation of the supramolecular polymer causes signal enhancement of resonance light scattering. Based on this, we established a new method for the determination of zinc by resonance light scattering. Under optimized experimental conditions, the zinc concentration in the range of 0.3–30 ng/mL showed a good linear relationship with the resonance light scattering intensity of the system. The detection limit of the method is 0.1 ng/mL. Using this method to determine the content of zinc in food, the recovery rate of standard addition is between 95 and 107%, and the relative standard deviation is less than 3.68%.