PMID- 26297456
OWN - NLM
STAT- MEDLINE
DCOM- 20160706
LR  - 20191210
IS  - 1618-2650 (Electronic)
IS  - 1618-2642 (Linking)
VI  - 407
IP  - 25
DP  - 2015 Oct
TI  - Selective extraction of gallic acid in pomegranate rind using surface imprinting 
      polymers over magnetic carbon nanotubes.
PG  - 7681-90
LID - 10.1007/s00216-015-8930-9 [doi]
AB  - A novel surface imprinting polymer based on magnetic carbon nanotubes was 
      prepared using dendritic polyethyleneimine as functional monomer to amplify the 
      number of imprinted cavities. The characteristics of resulting polymers were 
      evaluated by transmission electron microscopy (TEM), X-ray diffraction (XRD), 
      Fourier-transform infrared spectroscopy (FT-IR), and vibrating sample 
      magnetometer (VSM). Results suggest that magnetic nanoparticles are deposited 
      onto the surface of multiwalled carbon nanotubes and the imprinted shell is 
      coated on the surface of magnetic carbon nanotubes with a thickness of 
      approximately 8 nm. Magnetic imprinted polymers are sensitive to magnetic fields 
      and can be easily separated within 3 s using an external magnet. The adsorption 
      results indicate that the obtained imprinted polymers have fast kinetics, an 
      ultrahigh adsorption capacity of 479.9 mg g(-1), and satisfactory selectivity 
      towards the template molecule. The prepared materials have excellent stability 
      with no obvious deterioration after six adsorption-regeneration cycles. In 
      addition, a method for determination of gallic acid (GA) in pomegranate rind was 
      developed, using a combination of the prepared polymers used as solid-phase 
      extraction (SPE) sorbents and high-performance liquid chromatography (HPLC) for 
      rapid isolation and determination of GA. The limit of detection of the proposed 
      method is 0.001 mug mL(-1), and the intra and inter-day relative standard 
      deviations (RSDs) are lower than 3.8% and 5.3%, respectively. The recoveries of 
      GA from pomegranate rind extract are in the range 98.2-103.6% with RSDs lower 
      than 4.3%.
FAU - Hao, Yi
AU  - Hao Y
AD  - Institute of Analytical Science, Xi'an Jiaotong University, Xi'an, 710049, China.
AD  - School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China.
FAU - Gao, Ruixia
AU  - Gao R
AD  - Institute of Analytical Science, Xi'an Jiaotong University, Xi'an, 710049, China. 
      ruixiagao@mail.xjtu.edu.cn.
FAU - Liu, Dechun
AU  - Liu D
AD  - Department of Hepatobiliary Surgery, First Hospital of Xi'an Jiaotong University, 
      Xi'an, 710061, China.
FAU - Tang, Yuhai
AU  - Tang Y
AD  - Institute of Analytical Science, Xi'an Jiaotong University, Xi'an, 710049, China.
AD  - School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China.
FAU - Guo, Zengjun
AU  - Guo Z
AD  - School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China. 
      guozj@mail.xjtu.edu.cn.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150822
PL  - Germany
TA  - Anal Bioanal Chem
JT  - Analytical and bioanalytical chemistry
JID - 101134327
RN  - 0 (Nanotubes, Carbon)
RN  - 632XD903SP (Gallic Acid)
RN  - 9002-98-6 (Polyethyleneimine)
SB  - IM
MH  - Adsorption
MH  - Chromatography, High Pressure Liquid/methods
MH  - Gallic Acid/*isolation & purification
MH  - Lythraceae/*chemistry
MH  - Magnets/*chemistry
MH  - Molecular Imprinting/*methods
MH  - Nanotubes, Carbon/*chemistry
MH  - Polyethyleneimine/*chemistry
MH  - Solid Phase Extraction/*methods
OTO - NOTNLM
OT  - Dendritic polyethyleneimine
OT  - Gallic acid
OT  - Magnetic carbon nanotubes
OT  - Surface imprinting
EDAT- 2015/08/25 06:00
MHDA- 2016/07/07 06:00
CRDT- 2015/08/23 06:00
PHST- 2015/06/03 00:00 [received]
PHST- 2015/07/17 00:00 [accepted]
PHST- 2015/07/09 00:00 [revised]
PHST- 2015/08/23 06:00 [entrez]
PHST- 2015/08/25 06:00 [pubmed]
PHST- 2016/07/07 06:00 [medline]
AID - 10.1007/s00216-015-8930-9 [pii]
AID - 10.1007/s00216-015-8930-9 [doi]
PST - ppublish
SO  - Anal Bioanal Chem. 2015 Oct;407(25):7681-90. doi: 10.1007/s00216-015-8930-9. Epub 
      2015 Aug 22.