PMID- 20970144
OWN - NLM
STAT- MEDLINE
DCOM- 20110124
LR  - 20191210
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1217
IP  - 47
DP  - 2010 Nov 19
TI  - n-Octadecylphosphonic acid grafted mesoporous magnetic nanoparticle: Preparation, 
      characterization, and application in magnetic solid-phase extraction.
PG  - 7351-8
LID - 10.1016/j.chroma.2010.09.074 [doi]
AB  - A new sorbent for magnetic solid-phase extraction, n-octadecylphosphonic acid 
      modified mesoporous magnetic nano particles (OPA/MMNPs), was easily prepared via 
      a two-step strategy. MMNPs were synthesized by a solvent-thermal process, and 
      then OPA was grafted onto the surface of MMNPs via the strong Lewis acid/base 
      interaction. The resultant material was characterized by transmission electron 
      microscopy, tensionmeter, Fourier-transform infrared spectroscopy, vibrating 
      sample magnetometry, elemental analysis, and nitrogen adsorption analysis. The 
      results demonstrated that the particles exhibited mesoporous structure, 
      superparamagnetic (57emu/g) and extremely hydrophobic (water contact angle of 
      136 degrees ) properties. To evaluate the extraction performance of the resultant 
      sorbent, polycyclic aromatic hydrocarbons (PAHs) were chosen as model analytes. 
      The extraction conditions were optimized. Based on these, a rapid, convenient and 
      efficient method for the determination of PAHs in water samples was established 
      by combination of magnetic solid-phase extraction and gas chromatography-mass 
      spectroscopy. The linearity range of proposed method was 0.2-100mug/L with 
      correlation coefficients (R(2)) of 0.9726-0.9970. The intra- and inter-day 
      relative standard deviations (RSDs) were less than 17.6%. Batch-to-batch 
      reproducibility was acceptable with RSD values less than 12.1%.
CI  - Copyright (c) 2010 Elsevier B.V. All rights reserved.
FAU - Ding, Jun
AU  - Ding J
AD  - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of 
      Education), Department of Chemistry, Wuhan University, Wuhan 430072, China.
FAU - Gao, Qiang
AU  - Gao Q
FAU - Luo, Dan
AU  - Luo D
FAU - Shi, Zhi-Guo
AU  - Shi ZG
FAU - Feng, Yu-Qi
AU  - Feng YQ
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20101020
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Magnetite Nanoparticles)
RN  - 0 (Organophosphonates)
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - 0 (Water Pollutants, Chemical)
SB  - IM
MH  - Hydrophobic and Hydrophilic Interactions
MH  - Magnetite Nanoparticles/*chemistry
MH  - Organophosphonates/*chemistry
MH  - Polycyclic Aromatic Hydrocarbons/analysis/isolation & purification
MH  - Porosity
MH  - Solid Phase Extraction/*instrumentation/*methods
MH  - Water Pollutants, Chemical/analysis/isolation & purification
EDAT- 2010/10/26 06:00
MHDA- 2011/01/25 06:00
CRDT- 2010/10/26 06:00
PHST- 2010/08/27 00:00 [received]
PHST- 2010/09/26 00:00 [revised]
PHST- 2010/09/28 00:00 [accepted]
PHST- 2010/10/26 06:00 [entrez]
PHST- 2010/10/26 06:00 [pubmed]
PHST- 2011/01/25 06:00 [medline]
AID - S0021-9673(10)01324-5 [pii]
AID - 10.1016/j.chroma.2010.09.074 [doi]
PST - ppublish
SO  - J Chromatogr A. 2010 Nov 19;1217(47):7351-8. doi: 10.1016/j.chroma.2010.09.074. 
      Epub 2010 Oct 20.