RT Journal Article
T1 Synthesis and application of a surface ionic imprinting polymer on silicacoated Mn-doped ZnS quantum dots as a chemosensor for the selective quantification of inorganic arsenic in fish
A1 Jinadasa, Kolita Kamal Bedigama Kankanamge
A1 Peña Vázquez, Elena María
A1 Bermejo Barrera, Pilar
A1 Moreda Piñeiro, Antonio
K1 Silica-coated Mn-doped ZnS quantum dots
K1 Ionic imprinted polymer
K1 Room temperature phosphorescence
K1 Inorganic arsenic
K1 Fish
K1 Chemosensor probe
AB A novel room temperature phosphorescence chemosensor probe has been successfully developedand applied to the selective detection and quantification of inorganic arsenic (As(III) plus As(V))in fish samples. The prepared material (IIP@ZnS:Mn QDs) was based on Mn-doped ZnSquantum dots coated with (3-aminopropyl) triethoxysilane and an As(III) ionic imprintedpolymer. The novel use of vinyl imidazole as a complexing reagent when synthesizing the ionicimprinted polymer guarantees that both inorganic arsenic species (As(III) and As(V)) caninteract with the recognition cavities in the ionic imprinted polymer. After characterization,several studies were performed to enhance the interaction between the targets (As(III) and As(V)ions) and the IIP@ZnS:Mn QDs nanoparticles. The optimization and validation process showedthat the composite material offers high selectivity (high imprinting factor) for inorganic arsenicspecies. The limit of quantification for total inorganic As was 29.6 μg kg-1, value lower than theEU/EC regulation limits proposed for other foodstuffs than fish, such as rice. The proposedmethod is therefore simple, requires short analysis times and offers good sensitivity, precision(inter-day relative standard deviations lower than 10%), and quantitative analytical recoveries. The method has been successfully applied to assess total inorganic arsenic in several fisheryproducts, showing good agreement with the total inorganic arsenic concentration (As(III) plusAs(V)) found after applying other advanced and expensive methods such those based on highperformance liquid chromatography hyphenated to inductively coupled plasma – massspectrometry
PB Springer
SN 1618-2642
YR 2020
FD 2020
LK http://hdl.handle.net/10347/32571
UL http://hdl.handle.net/10347/32571
LA eng
NO Jinadasa, B.K.K.K., Peña Vázquez, E., Bermejo Barrera, P., Moreda Piñeiro, A. (2020). Synthesis and application of a surface ionic imprinting polymer on silicacoated Mn-doped ZnS quantum dots as a chemosensor for the selective quantification of inorganic arsenic in fish. "Analytical and Bioanalytical Chemistry", vol. 412, Issue 7, 1663-1673
NO This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s00216-020-02405-1
NO This work was supported by the Dirección Xeral de I+D – Xunta de Galicia Grupos deReferencia Competitiva (project number 6RC2014/2016 and ED431C2018/19), andDevelopment of a Strategic Grouping in Materials - AEMAT (grant ED431E2018/08). Authorsthanks to Dr. Bruno Dacuña-Mariño (Unidade de Raios X) at Rede de Infraestruturas de Apoioá Investigación e ao Desenvolvemento Tecnolóxico – University of Santiago de Compostela) forXRD technical support, to Eugenio Solla (Servicio de Microscopía Electrónica) at CACTI–University of Vigo for TEM/EDS technical support, and to Dr. María Celeiro (LIDSA,Department of Analytical Chemistry, Nutrition and Bromatology – University of Santiago deCompostela) for ASE technical assistance.
DS Minerva
RD 28 abr 2026