PMID- 34477188
OWN - NLM
STAT- MEDLINE
DCOM- 20211029
LR  - 20211029
IS  - 1759-9679 (Electronic)
IS  - 1759-9660 (Linking)
VI  - 13
IP  - 37
DP  - 2021 Sep 30
TI  - Covalent organic framework-LZU1@PEI@Fe(3)O(4)-based magnetic dispersive 
      micro-solid phase extraction of tetracyclines from environmental water prior to 
      HPLC analysis.
PG  - 4320-4327
LID - 10.1039/d1ay00873k [doi]
AB  - In this work, COF-LZU1@PEI@Fe(3)O(4) was synthesized by immobilization of 
      COF-LZU1 onto the surface of polyethyleneimine-functionalized Fe(3)O(4) 
      nanoparticles (PEI@Fe(3)O(4)) and employed as an adsorbent for magnetic 
      dispersive micro-solid phase extraction of tetracyclines (TCs). 
      COF-LZU1@PEI@Fe(3)O(4) was characterized by scanning electron microscopy, Fourier 
      transform infrared spectroscopy, X-ray diffraction and nitrogen 
      adsorption-desorption isotherms analysis. The optimal extraction and desorption 
      conditions were as follows: 15.00 mL sample solution (pH 7.0) extracted with 5.0 
      mg of adsorbent for 30 min at 30  degrees C, and then desorbed with 1.50 mL 
      methanol/acetonitrile/0.02 mol L(-1) oxalic acid solution (v/v, 1 : 2 : 7). Good 
      linearities were obtained between the peak area and TC concentration ranging from 
      5-500 mug L(-1) with correlation coefficients (R(2)) higher than 0.9992 and limits 
      of detection lower than 0.51 mug L(-1). The relative standard deviations (RSDs) of 
      intra-day and inter-day were less than 5.7% and 7.4%, respectively. The developed 
      method was successfully applied to the determination of TCs in environmental 
      water samples with recoveries in the range of 87.0-113.8% and RSDs less than 
      5.1%, suggesting great potential of COF-LZU1@PEI@Fe(3)O(4) for efficient 
      extraction and analysis of trace TCs in water samples.
FAU - Zhang, Ying
AU  - Zhang Y
AD  - College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 
      321004, China. wangwp@zjnu.edu.cn.
FAU - Ning, Yuhan
AU  - Ning Y
AD  - College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 
      321004, China. wangwp@zjnu.edu.cn.
FAU - Liao, Wanliang
AU  - Liao W
AD  - College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 
      321004, China. wangwp@zjnu.edu.cn.
FAU - Wang, Weiping
AU  - Wang W
AUID- ORCID: 0000-0002-0854-7081
AD  - College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 
      321004, China. wangwp@zjnu.edu.cn.
FAU - Wang, Ai-Jun
AU  - Wang AJ
AUID- ORCID: 0000-0003-2041-7981
AD  - College of Geography and Environmental Sciences, Zhejiang Normal University, 
      Jinhua 321004, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20210930
PL  - England
TA  - Anal Methods
JT  - Analytical methods : advancing methods and applications
JID - 101519733
RN  - 0 (Metal-Organic Frameworks)
RN  - 0 (Tetracyclines)
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - Chromatography, High Pressure Liquid
MH  - Limit of Detection
MH  - Magnetic Phenomena
MH  - *Metal-Organic Frameworks
MH  - Solid Phase Extraction
MH  - Tetracyclines
MH  - Water
EDAT- 2021/09/04 06:00
MHDA- 2021/10/30 06:00
CRDT- 2021/09/03 08:43
PHST- 2021/09/04 06:00 [pubmed]
PHST- 2021/10/30 06:00 [medline]
PHST- 2021/09/03 08:43 [entrez]
AID - 10.1039/d1ay00873k [doi]
PST - epublish
SO  - Anal Methods. 2021 Sep 30;13(37):4320-4327. doi: 10.1039/d1ay00873k.