PMID- 36640681
OWN - NLM
STAT- MEDLINE
DCOM- 20230203
LR  - 20230203
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1690
DP  - 2023 Feb 8
TI  - Post-synthetic modification of a magnetic covalent organic framework with alkyne 
      linkages for efficient magnetic solid-phase extraction and determination of trace 
      basic orange II in food samples.
PG  - 463777
LID - S0021-9673(23)00005-5 [pii]
LID - 10.1016/j.chroma.2023.463777 [doi]
AB  - Efficient magnetic solid phase extraction using covalent organic frameworks 
      (COFs) can find important applications in food safety. In this work, a 
      sulfonate-functionalized magnetic COF (Fe(3)O(4)@COF-SO(3)Na) was synthesized by 
      self-polycondensation of two-in-one monomer 
      1,6-bis(4-formylphenyl)-3,8-bis((4-aminophenyl) ethynyl)) pyrene (BFBAEPy) on the 
      surface of aminated Fe(3)O(4) and a thiol-yne click reaction. It was further 
      adopted as an adsorbent for the efficient magnetic solid-phase extraction (MSPE) 
      of basic orange II. The selective adsorption experiment indicated that it 
      displayed selective adsorption ability to basic orange II due to the ion 
      exchange, hydrogen bonds, and pi-pi interactions. Under the optimized conditions, 
      the proposed MSPE method coupled with HPLC-DAD showed excellent linearity in the 
      range of 0.05-0.5 microg/mL (R(2) = 0.9997) for basic orange II. The lower limits of 
      detection (LODs) for basic orange II were 1.0-1.4 microg/L for three food samples: 
      yellow croaker, paprika and dried bean curd. The recoveries were 90.1-98.8% with 
      relative standard deviations (RSDs) below 4.2%. Therefore, this work provides an 
      effective strategy to modify magnetic COFs as absorbents in MSPE. Due to the 
      tunability of functional groups in thiol‑yne click reactions, the functional 
      groups of magnetic COFs can be readily designed to enrich their multifunctional 
      applications. Meanwhile, this work proposed a new method to detect trace amounts 
      of basic orange II in food samples.
CI  - Copyright (c) 2023 Elsevier B.V. All rights reserved.
FAU - Sun, Wei
AU  - Sun W
AD  - Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang 
      Province, School of Material Science and Chemical Engineering, Ningbo University, 
      Ningbo 315211, Zhejiang, China.
FAU - Xu, Qing
AU  - Xu Q
AD  - Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang 
      Province, School of Material Science and Chemical Engineering, Ningbo University, 
      Ningbo 315211, Zhejiang, China. Electronic address: xuqing@nbu.edu.cn.
FAU - Liu, Qili
AU  - Liu Q
AD  - Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang 
      Province, School of Material Science and Chemical Engineering, Ningbo University, 
      Ningbo 315211, Zhejiang, China.
FAU - Wang, Tianliang
AU  - Wang T
AD  - Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang 
      Province, School of Material Science and Chemical Engineering, Ningbo University, 
      Ningbo 315211, Zhejiang, China.
FAU - Liu, Zhaixin
AU  - Liu Z
AD  - Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang 
      Province, School of Material Science and Chemical Engineering, Ningbo University, 
      Ningbo 315211, Zhejiang, China.
LA  - eng
PT  - Journal Article
DEP - 20230105
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Metal-Organic Frameworks)
RN  - Q1LIY3BO0U (2-naphthol orange)
RN  - 0 (Sulfhydryl Compounds)
SB  - IM
MH  - *Metal-Organic Frameworks/chemistry
MH  - Adsorption
MH  - Magnetic Phenomena
MH  - Solid Phase Extraction/methods
MH  - Sulfhydryl Compounds
MH  - Limit of Detection
MH  - Chromatography, High Pressure Liquid
OTO - NOTNLM
OT  - Basic orange II
OT  - HPLC-DAD
OT  - Magnetic covalent organic frameworks
OT  - Magnetic solid-phase extraction
OT  - Thiol-yne click reaction
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2023/01/15 06:00
MHDA- 2023/02/04 06:00
CRDT- 2023/01/14 18:19
PHST- 2022/11/08 00:00 [received]
PHST- 2022/12/31 00:00 [revised]
PHST- 2023/01/03 00:00 [accepted]
PHST- 2023/01/15 06:00 [pubmed]
PHST- 2023/02/04 06:00 [medline]
PHST- 2023/01/14 18:19 [entrez]
AID - S0021-9673(23)00005-5 [pii]
AID - 10.1016/j.chroma.2023.463777 [doi]
PST - ppublish
SO  - J Chromatogr A. 2023 Feb 8;1690:463777. doi: 10.1016/j.chroma.2023.463777. Epub 
      2023 Jan 5.