Journal
TALANTA
Volume 89, Issue -, Pages 38-46Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2011.11.052
Keywords
C-18-UMS NPs; MSPE; Sudan dyes; Water samples
Categories
Funding
- National Natural Science Foundation of China [20727003, 21075049]
- Science and Technology Developing Foundation of Jilin Province [20100356, 201101062]
Ask authors/readers for more resources
In this study, the new C-18-functionalized ultrafine magnetic silica nanoparticles (C-18-UMS NPs) were successfully synthesized and applied for extraction of sudan dyes in water samples based on the magnetic solid-phase extraction (MSPE). The extraction and concentration were carried out in one step by blending C-18-UMS NPs and water samples. The sudan dyes adsorbed C-18-UMS NPs were isolated from the matrix easily with an external magnetic field. After desorption the quantitation of sudan dyes was done by ultra fast liquid chromatography (UFLC). Satisfactory extraction recovery can be obtained with only 50 mgC(18)-UMS NPs. The effects of experimental parameters, including the amount of the nanoparticles, extraction time. pH value, desorption solvent, volume of desorption solvent and desorption time were investigated. The limits of detection for sudan I, II, III and IV were 0.066, 0.070, 0.12 and 0.12 ng mL(-1), respectively. Recoveries obtained by analyzing the six spiked water samples were between 68% and 103%. (C) 2011 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available