PMID- 28063642 OWN - NLM STAT- MEDLINE DCOM- 20170320 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1483 DP - 2017 Feb 3 TI - Preparation and characterization of magnetic Wells-Dawson heteropoly acid nanoparticles for magnetic solid-phase extraction of aromatic amines in water samples. PG - 64-70 LID - S0021-9673(16)31749-6 [pii] LID - 10.1016/j.chroma.2016.12.083 [doi] AB - In this work, aminopropyl modified silica-coated magnetite nanoparticles with Wells-Dawson heteropoly acid (P(2)W(17)Fe@APSCMNPs) was first synthesized and underwent highly efficient magnetic solid-phase extraction (MSPE) of aromatic amines from aqueous samples. The resulted nanomaterials were characterized with different physicochemical techniques such as Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and vibrating sample magnetometry (VSM). Aniline, N,N-dimethylaniline, o-toluidine and 3-chloroaniline were selected as target compounds. The sample quantification was carried out using gas chromatography-flame ionization detector (GC-FID). Under optimal working conditions, the developed method showed good linearity (R>0.9912) in the range of 0.01-100ngmL(-1). The method displays detection limits (at an S/N ration of 3) in the range from 0.003 to 0.01ngmL(-1), and the limits of quantification (at an S/N ratio of 10) are between 0.01 and 0.04ngmL(-1). The enrichment factors (EFs) were in the range of 75-113. Relative standard deviations (RSDs) are 4.8-8.3%. The applicability of the developed method was examined by analyzing different water samples (river water, tap water, well water and wastewater) and the relative recovery values for the spiked water samples were found to be in the range of 90.7-99.8%. CI - Copyright (c) 2016 Elsevier B.V. All rights reserved. FAU - Amiri, Amirhassan AU - Amiri A AD - Department of Chemistry, Faculty of Sciences, Hakim Sabzevari University, 9617976487 Sabzevar, Iran. Electronic address: Amiri_amirhassan@yahoo.com. FAU - Saadati-Moshtaghin, Hamid Reza AU - Saadati-Moshtaghin HR AD - Department of Chemistry, Faculty of Sciences, Hakim Sabzevari University, 9617976487 Sabzevar, Iran. FAU - Zonoz, Farokhzad Mohammadi AU - Zonoz FM AD - Department of Chemistry, Faculty of Sciences, Hakim Sabzevari University, 9617976487 Sabzevar, Iran. FAU - Targhoo, Azadeh AU - Targhoo A AD - Department of Chemistry, Faculty of Sciences, Hakim Sabzevari University, 9617976487 Sabzevar, Iran. LA - eng PT - Journal Article DEP - 20161231 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Acids) RN - 0 (Amines) RN - 0 (Magnetite Nanoparticles) RN - 0 (Solvents) RN - 0 (Water Pollutants, Chemical) RN - 059QF0KO0R (Water) SB - IM MH - Acids/*chemistry MH - Adsorption MH - Amines/*analysis MH - Hydrogen-Ion Concentration MH - Limit of Detection MH - Magnetics/*methods MH - Magnetite Nanoparticles/*chemistry MH - Solid Phase Extraction/*methods MH - Solvents MH - Spectroscopy, Fourier Transform Infrared MH - Water/*chemistry MH - Water Pollutants, Chemical/*analysis OTO - NOTNLM OT - Aromatic amines OT - Magnetic nanoparticles OT - Magnetic solid-phase extraction OT - Water samples OT - Wells-Dawson heteropoly acid EDAT- 2017/01/09 06:00 MHDA- 2017/03/21 06:00 CRDT- 2017/01/09 06:00 PHST- 2016/10/14 00:00 [received] PHST- 2016/12/09 00:00 [revised] PHST- 2016/12/30 00:00 [accepted] PHST- 2017/01/09 06:00 [pubmed] PHST- 2017/03/21 06:00 [medline] PHST- 2017/01/09 06:00 [entrez] AID - S0021-9673(16)31749-6 [pii] AID - 10.1016/j.chroma.2016.12.083 [doi] PST - ppublish SO - J Chromatogr A. 2017 Feb 3;1483:64-70. doi: 10.1016/j.chroma.2016.12.083. Epub 2016 Dec 31.