Pang, Yue-Hong; Huang, Yu-Ying; Shen, Xiao-Fang; Wang, Yi-Ying published their research in Analytica Chimica Acta in 2021. The article was titled 《Electro-enhanced solid-phase microextraction with covalent organic framework modified stainless steel fiber for efficient adsorption of bisphenol A》.COA of Formula: C9H6O6 The article contains the following contents:
In this work, electro-enhanced solid-phase microextraction (EE-SPME) and covalent organic framework (COF) were adopted to improve the extraction efficiency. A conductive COF synthesized of 2,6-diaminoanthraquinone (DQ) and 1,3,5-triformylphloroglucinol (TP) was in situ bonded to the stainless steel wire via facile solution-phase approach and used as the EE-SPME fiber coating to preconc. a typical endocrine disruptor bisphenol A (BPA). Compared with conventional SPME, the DQTP bonded fiber coupled with EE-SPME device exhibited higher extraction efficiency and achieved extraction equilibrium within 10 min. The proposed approach based on EE-SPME and gas chromatog. coupled with flame ionization detector gave a linear range of 0.05-10μg mL-1 and detection limit of 3μg L-1 (S/N = 3) with good precision (<6.7%) and reproducibility (<7.1%) spiked with 0.1, 0.5, 1.0μg mL-1 BPA. Quant. determination of BPA in extracts of food packagings (mineral water bottles, milk boxes and milk tea cups) was achieved with recoveries from 88.6 to 118.0%.2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4COA of Formula: C9H6O6) was used in this study.
2,4,6-Trihydroxybenzene-1,3,5-tricarbaldehyde(cas: 34374-88-4) is a member of phloroglucinol derivatives.COA of Formula: C9H6O6For acyl phloroglucinols, it is considered the largest category of compounds among phloroglucinols of natural characteristics.
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