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Journal of Chromatography A

Journal of Chromatography A

IF: 3.8
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Development of a novel second-generation polyester dendritic functionalized graphene oxide for efficient pipette tip micro solid-phase extraction and detection of?…

Published:3 December 2024 DOI: 10.1016/j.chroma.2024.465582 PMID: 39647375
Xuesong Liu,?Liuliu Cheng,?Yehong Han,?Mingyu Wang,?Hongyuan Yan

Abstract

A novel adsorbent, second-generation polyester dendritic functionalized graphene oxide (PDG-2), was developed for pipette tip micro solid-phase extraction of venlafaxine and desvenlafaxine from urine. Leveraging the facile modification properties of graphene oxide and the controlled synthesis capabilities of dendritic materials, PDG-2 exhibited a rough surface and numerous active groups with adsorption capacities of desvenlafaxine and venlafaxine up to 187 mg g-1 and 230 mg g-1. Method validation confirmed excellent linearity, low detection limits, high precision, and accurate recovery. Compared with commercial adsorbents, PDG-2 outperformed HLB and MCX and matched the performance of C18 with a much smaller amount.

Substances (6)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Malonic acid 141-82-2 C3H4O4 956 suppliers $5.00-$6223.25
Ethanol 64-17-5 C2H6O 954 suppliers $10.00-$41399.50
Methanol 67-56-1 CH4O 897 suppliers $9.00-$19915.10
Trifluoroacetic acid 76-05-1 C2HF3O2 827 suppliers $9.00-$12230.00
Phloroglucinol 108-73-6 C6H6O3 629 suppliers $13.00-$5058.90
Graphene 1034343-98-0 CH4 132 suppliers $40.00-$3420.00

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