Abstract
In the present study, a novel thiol functionalised ionic liquid based xerogel (XeIL-SH) has been synthesised and used for the solid phase extraction of Fe3+, Co2+, Cu2+, Ni2+, Pb2+, and Zn2+ ion. The XeIL-SH was prepared by hydrolysis and condensation of 1,3-bis(3-trimethoxysilylpropyl)-imidazolium iodide (BTMSPI) followed by grafting of 3-thiopropyl trimethoxysilane under argon atmosphere. The morphology and approximate particle sizes of the material were determined by scanning electron microscopy. The presence of organic functional groups in the silica framework was also characterised by diffuse reflectance infrared spectroscopy. After characterisation, the XeIL-SH was successfully applied for the solid phase extraction of Fe3+, Co2+, Cu2+, Ni2+, Pb2+, and Zn2+ ion. The influence of effective parameters such as sample flow rate, pH, eluent conditions (type, volume, and concentration) and matrices effect on metal ion recoveries were studied and optimised. The results showed that the limits of detection (LODs) are in the range of 1.5–2.8 µg L−1 and preconcentration factor is about 150. The procedure was also effectively applied for the determination of analytes in various real samples with recoveries > 94.8% and R.S.D. less than 4.4% (N = 5).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Environmental Analytical Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
