News Column

New Nanoparticles Study Findings Have Been Reported by Investigators at Shahid Chamran University

May 23, 2014



By a News Reporter-Staff News Editor at Science Letter -- Fresh data on Nanoparticles are presented in a new report. According to news reporting from Ahwaz, Iran, by NewsRx journalists, research stated, "A novel and sensitive ultrasound-assisted solid phase extraction (UASPE) method for pre-concentration and determination of ultra-trace amounts of nitrophenols and chlorophenols in water samples was demonstrated. Four hazardous phenolic compounds in water samples were extracted and monitored by high performance liquid chromatography."

The news correspondents obtained a quote from the research from Shahid Chamran University, "The results demonstrated that in the presence of Aliquat 336 (ALQ), magnetic iron oxide nanoparticles (MIONPs) were quite efficient in the adsorption and preconcentration of traces of analytes. MIONPs were synthesized and characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The important parameters influencing the extraction efficiency were studied and optimized. The separation and pre-concentration steps were fast and completed in 10 min. Acetonitrile was used for the desorption of target analytes. Under optimum adsorption conditions, a linear range between 0.015 and 100 mu g L-1 (R-2 >= 0.997), and limits of detections (LODs) ranging from 0.005 to 0.041 mu g L-1 were obtained. Enrichment factors in the range of 76-195 were achieved and relative standard deviations (%RSDs) were less than 10.0 (n = 3) for the target analytes. The analytical method was successfully applied for environmental water samples such as tap water and river water. The recoveries varied within the range of 70-119% confirming the good performance of the method in various water samples."

According to the news reporters, the research concluded: "The results showed that the proposed method is a rapid, convenient and feasible technique for the determination of nitrophenols and chlorophenols in aqueous samples."

For more information on this research see: Ultrasound-assisted solid phase extraction of nitro- and chloro-(phenols) using magnetic iron oxide nanoparticles and Aliquat 336 ionic liquid. Journal of Chromatography A, 2014;1336():34-42. Journal of Chromatography A can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Chromatography A - www.elsevier.com/wps/product/cws_home/502688)

Our news journalists report that additional information may be obtained by contacting H. Parham, Shahid Chamran Univ, Dept. of Chem, Fac Sci, Ahwaz 6135714168, Iran (see also Nanoparticles).

Keywords for this news article include: Iran, Asia, Ahwaz, Solvents, Ionic Liquids, Nanotechnology, Emerging Technologies

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Source: Science Letter