PMID- 23176735
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20130430
LR  - 20121126
IS  - 1873-4324 (Electronic)
IS  - 0003-2670 (Linking)
VI  - 756
DP  - 2012 Dec 5
TI  - Facile synthesis of new nano sorbent for magnetic solid-phase extraction by self 
      assembling of bis-(2,4,4-trimethyl pentyl)-dithiophosphinic acid on Fe3O4@Ag 
      core@shell nanoparticles: characterization and application.
PG  - 13-22
LID - S0003-2670(12)01562-0 [pii]
LID - 10.1016/j.aca.2012.10.040 [doi]
AB  - A novel sorbent for magnetic solid-phase extraction by self-assembling of 
      organosulfur compound, (bis-(2,4,4-trimethylpentyl)-dithiophosphinic acid), onto 
      the silver-coated Fe(3)O(4) nanoparticles was introduced. Due to the formation of 
      covalent bond of S-Ag, the new coating on the silver surface was very stable and 
      showed high thermal stability (up to 320 degrees C). The size, morphology, composition, 
      and properties of the prepared nanoparticles have also been characterized and 
      determined using scanning electron microscopy (SEM), energy-dispersive X-ray 
      analyzer (EDX), dynamic light scattering (DLS), Fourier transform-infrared 
      (FT-IR) spectroscopy, and thermal gravimetric analysis (TGA). Extraction 
      efficiency of the new sorbent was investigated by extraction of five polycyclic 
      aromatic hydrocarbons (PAHs) as model compounds. The optimum extraction 
      conditions for PAHs were obtained as of extraction time, 20 min; 50 mg sorbent 
      from 100 mL of the sample solution, and elution with 100 muL of 1-propanol under 
      fierce vortex for 2 min. Under the optimal conditions, the calibration curves 
      were obtained in the range of 0.05-100 mug L(-1) (R(2)>0.9980) and the LODs 
      (S/N=3) were obtained in the range of 0.02-0.10 mug L(-1). Relative standard 
      deviations (RSDs) for intra- and inter-day precision were 2.6-4.2% and 3.6-8.3%, 
      respectively. In addition, feasibility of the method was demonstrated with 
      extraction and determination of PAHs from some real samples containing tap water, 
      hookah water as well as soil samples with relative recovery of 82.4-109.0% and 
      RSDs of 3.5-11.6%.
CI  - Copyright (c) 2012 Elsevier B.V. All rights reserved.
FAU - Tahmasebi, Elham
AU  - Tahmasebi E
AD  - Department of Chemistry, Tarbiat Modares University, Tehran, Iran.
FAU - Yamini, Yadollah
AU  - Yamini Y
LA  - eng
PT  - Journal Article
DEP - 20121101
PL  - Netherlands
TA  - Anal Chim Acta
JT  - Analytica chimica acta
JID - 0370534
EDAT- 2012/11/28 06:00
MHDA- 2012/11/28 06:01
CRDT- 2012/11/27 06:00
PHST- 2012/08/15 00:00 [received]
PHST- 2012/10/17 00:00 [revised]
PHST- 2012/10/22 00:00 [accepted]
PHST- 2012/11/27 06:00 [entrez]
PHST- 2012/11/28 06:00 [pubmed]
PHST- 2012/11/28 06:01 [medline]
AID - S0003-2670(12)01562-0 [pii]
AID - 10.1016/j.aca.2012.10.040 [doi]
PST - ppublish
SO  - Anal Chim Acta. 2012 Dec 5;756:13-22. doi: 10.1016/j.aca.2012.10.040. Epub 2012 
      Nov 1.