PMID- 32996953
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20210406
LR  - 20210406
IS  - 1759-9679 (Electronic)
IS  - 1759-9660 (Linking)
VI  - 12
IP  - 40
DP  - 2020 Oct 22
TI  - A molecularly imprinted polymer based monolith pipette tip for solid-phase 
      extraction of 2,4-dichlorophenoxyacetic acid in an aqueous sample.
PG  - 4913-4921
LID - 10.1039/d0ay01587c [doi]
AB  - This paper presents a simple approach for fabrication of a pipette tip 
      solid-phase extraction (PT-SPE) device, which possesses a monolith structure with 
      low back pressure and has high selectivity to 2,4-dichlorophenoxyacetic acid 
      (2,4-D). Pipette tips were packed with molecularly imprinted polymers (MIPs) as a 
      selective adsorbent and high-density polyethylene (HDPE) as a co-sintering agent, 
      and then heated to form a monolith extraction device. The key factors including 
      the particle size and amount of packing material, and the type and volume of 
      elution solvent, which influence PT-SPE device performance were optimized. A 
      packing material of 40 mg/0.20 mL in a ratio of 4/6 (MIPs/HDPE) and treatment 
      temperature of 150  degrees C was selected. By the determination with high-performance 
      liquid chromatography (HPLC-SPD), the extraction device was found to have a good 
      extraction recovery for a 2,4-D lake water sample at a low concentration (0.006 
      mg L-1) with an enrichment factor about 50. The proposed method provided a simple 
      approach for the fabrication of a PT-SPE monolith device with reduced back 
      pressure and wall effect, which are very important for improving the extraction 
      efficiency. And the device will have promising application in the extraction of a 
      variety of analytes in complex samples.
FAU - Wu, Beibei
AU  - Wu B
AD  - Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key 
      Laboratory of Advanced Functional Materials, Autonomous Region, Institute of 
      Applied Chemistry, College of Chemistry, Xinjiang University, Urumqi, 830046, 
      Xinjiang, PR China. turghunm@xju.edu.cn.
FAU - Muhammad, Turghun
AU  - Muhammad T
FAU - Aihebaier, Sailemayi
AU  - Aihebaier S
FAU - Karim, Kal
AU  - Karim K
FAU - Hu, Yiting
AU  - Hu Y
FAU - Piletsky, Sergey
AU  - Piletsky S
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Anal Methods
JT  - Analytical methods : advancing methods and applications
JID - 101519733
SB  - IM
EDAT- 2020/10/01 06:00
MHDA- 2020/10/01 06:01
CRDT- 2020/09/30 12:15
PHST- 2020/10/01 06:00 [pubmed]
PHST- 2020/10/01 06:01 [medline]
PHST- 2020/09/30 12:15 [entrez]
AID - 10.1039/d0ay01587c [doi]
PST - ppublish
SO  - Anal Methods. 2020 Oct 22;12(40):4913-4921. doi: 10.1039/d0ay01587c.