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Reference type: Journal
Authors: Moreira FTC, Queirós RB, Truta LAA, Silva TI, Castro RM, Amorim LR, Sales MG
Article Title: Host-tailored sensors for leucomalachite green potentiometric measurements.
Publication date: 2013
Journal: Journal of Chemistry
Volume: 2013
Page numbers: Article ID 605403.
DOI: 10.1155/2013/605403

Abstract: A new biomimetic sensor for leucomalachite green host-guest interactions and potentiometric transduction is presented. The artificial host was imprinted in methacrylic acid or acrylamido-2-methyl-1-propanesulfonic acid-based polymers. Molecularly imprinted particles were dispersed in 2-nitrophenyloctyl ether and trapped in polyvinyl chloride). The potentiometric sensors exhibited a near-Nernstian response in steady state evaluations, with slopes and detection limits ranging from 45.8 to 81.2 mV decade-1 and 0.28 to 1.01 μg mL-1, respectively They were independent from the pH of test solutions within 3 to 5. Good selectivity was observed towards drugs that may contaminate water near fish cultures, such as oxycycline, doxycycline, enrofloxacin, trimethoprim, creatinine, chloramphenicol, and dopamine. The sensors were successfully applied to field monitoring of leucomalachite green in river samples. The method offered the advantages of simplicity, accuracy, applicability to colored and turbid samples, and automation feasibility.
Template and target information: leucomalachite green


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