| 论文简介 |
Boron-based covalent organic polymers are extremely popular adsorbents owing to their good adsorption properties. It is important and challenging to immobilize adsorbents on a substrate platform for their
further application. In this study, boroxine-linked COPs (B-COPs) containing carbon chains were synthesized and immobilized on a microcap following a one-step solvent-thermal reaction. We used (3-aminopropyl)triethoxysilane to stabilize and catalyze the formation of boroxine rings, which also anchored
B-COPs to the microcaps. To evaluate its adsorption property, the B-COP coated microcap
(B-COPs@microcap) was subjected to novel stir bar sorptive extraction (SBSE) for separating the active
anthraquinones from the complex matrices. Furthermore, the suspended B-COPs@microcap eliminated
the mechanical abrasion of the adsorbed phase during the SBSE process. Highly sensitive detection of
rhein and emodin was achieved with a low limit of detection (0.006 ng mL−1
) by coupling the bar sorptive
extraction (BSE) with ultra-performance liquid chromatography (UPLC). The B-COPs@microcap exhibited
good reproducibility, selectivity, and recyclability |
(创新港)
