dc.contributor.author | Zengin, Hacı Bayram | |
dc.date.accessioned | 2022-05-12T11:59:44Z | |
dc.date.available | 2022-05-12T11:59:44Z | |
dc.date.issued | 2021 | tr |
dc.identifier.citation | H. B. Zengin
Faculty of Sciences, Department of Chemistry, University of Cumhuriyet, Sivas, Turkey | tr |
dc.identifier.issn | 0306-7319 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12418/12910 | |
dc.description | F-604 | tr |
dc.description.abstract | The magnetic nano-composites based on the tris(hydroxymethlmethyl)
aminomethane-modified maleic anhydride-co-styrene copolymers
and Fe3O4 nano-particles were prepared as new potential
chelating agents for ultrasound-assisted-cloud point extraction (UACPE)
and pre-concentration of trace levels of Ag+ ions from aqueous
solutions. The structures of the nano-composites were characterised
via FT-IR, 1H-NMR and XRD analysis. After structural characterisation of
composites, Ag+ ions were detected by micro-volume UV-vis spectrophotometry
at 347 nm. The variables affecting complex formation and
extraction efficiency for separation/pre-concentration of the Ag+ ions
from various food matrices were evaluated and optimised in detail.
Under the optimised conditions, the method shows a good sensitivity
with linearity range from 10 to 350 μg L−1 and 4 to 160 μg L−1 for
amidic and imidic composites, respectively, with a better correlation
coefficient than 0.9825. The limits of detection, intra- and inter-day
precision (as RSDs%) and recovery rates for six replicate determinations
of Ag+ ions at levels of 25 and 100 μg L−1 were 4.28/1.21 μg L−1, 2.4–
4.1% and 92–98% for the modified copolymers, respectively. The preconcentration
factor for Ag+ ion from pre-concentration of 35-mL
sample was 70. A significant matrix effect was not observed for the
triplicate measurements of 100 μg L−1 Ag+ in the presence of various
interfering species below their maximum concentrations allowed in
this method, for Ag+ ions. The accuracy of the method was confirmed
by analysis of the two certified samples. The method was successfully
applied to determine low levels of Ag+ ions in mushroom and vegetable
samples, and satisfactory recoveries were obtained in the range
of 91-97% with lower RSD than 5.1% for the spiked samples. | tr |
dc.description.sponsorship | Sivas Cumhuriyet Üniversitesi | tr |
dc.language.iso | eng | tr |
dc.publisher | Taylor&Francis | tr |
dc.relation.isversionof | 10.1080/03067319.2019.1691186 | tr |
dc.rights | info:eu-repo/semantics/openAccess | tr |
dc.subject | Ultrasound-assisted-cloud point extraction; tris modification; copolymers; micro-volume UV-vis spectrophotometry; Ag+ ions; vegetables/ mushrooms | tr |
dc.title | Use of new polymeric composites for preconcentration of trace Ag+ ions from the selected mushroom/vegetables by ultrasoundassisted cloud-point extraction coupled to microvolume UV-Vis spectrophotometry | tr |
dc.type | article | tr |
dc.relation.journal | International Journal of Environmental Analytical Chemistry | tr |
dc.contributor.department | Fen Fakültesi | tr |
dc.contributor.authorID | 000-0003-3861-6671 | tr |
dc.identifier.volume | 101 | tr |
dc.identifier.issue | 14 | tr |
dc.identifier.endpage | 2002 | tr |
dc.identifier.startpage | 1978 | tr |
dc.relation.publicationcategory | Uluslararası Editör Denetimli Dergide Makale | tr |