Covalent organic framework reinforced hollow fiber bar for extraction and detection of bisphenols from beverages

• Published in: Food chemistry 2024-07, Vol.445, p.138802-138802, Article 138802
• Main Authors: Cheng, Shu-Ting, Qiao, Jin-Yu, Zhang, Hong-Ming, Shen, Xiao-Fang, Pang, Yue-Hong
• Format: Article
• Language: English
• Subjects: 1-Octanol; Beverages; Beverages - analysis; Bisphenols; Chromatography, High Pressure Liquid; Covalent organic framework; Extraction efficiency; Food; Hollow fiber bar; Metal-Organic Frameworks - chemistry; Solid Phase Extraction - methods
• ISSN: 0308-8146; 1873-7072
• DOI: 10.1016/j.foodchem.2024.138802

[Display omitted] •Synergistic effects of 1-octanol and COF@Tp-NDA improved bisphenols extraction.•Consumption of COF@Tp-NDA and organic solvents was less than existing methods.•HF porous structure avoided pollution of the extractant.•Method was successfully applied to the detection of BPs in three beverages samples. Bisphenols (BPs) can migrate from packaging materials into foods, resulting in potentially harmful residues. For example, accumulation of BPs is associated with endocrine disorders. Owing to matrix effects, development of an effective and eco-friendly sample pretreatment would be helpful for BPs detection in beverages packed in plastic containers. In this work, an extraction bar, composed of hollow fiber (HF) functionalized with covalent organic frameworks (COF@Tp-NDA) and 1-ocanol, was prepared for extraction of five BPs simultaneously. The synergistic effect of COF@Tp-NDA and 1-octanol improved the extraction efficiency of BPs from milk-based beverage, juice, and tea beverage. Under optimal conditions, limits of detection ranged from 0.10 to 2.00 ng mL−1 (R2 ≥ 0.9974) and recoveries ranged from 70.1 % to 106.8 %. This method has the potential to enrich BPs, supporting their accurate determination in complex beverages.