Publications by authors named "Mihaela-Carmen Cheregi"

Article Synopsis
  • A new disposable electrochemical sensor was developed for detecting dipyridamole (DIP) using a molecularly imprinted polymer (MIP) on a pencil graphite electrode (PGE) with curcumin as a key component.
  • Optimization of various parameters such as pH and monomer-template ratio was crucial for effective MIP formation, allowing for precise analysis of DIP's voltammetric behavior.
  • The sensor achieved its best performance under specific conditions, successfully measuring DIP concentrations in pharmaceutical and water samples, with detection limits of 1.47 × 10 mol/L for differential pulse voltammetry (DPV) and 3.96 × 10 mol/L for adsorptive stripping differential pulse voltammetry
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Curcumin (CU) is a polyphenolic compound extracted from turmeric, a well-known dietary spice. Since it has been shown that CU exerts beneficial effects on human health, interest has increased in its use but also in its analysis in different matrices. CU has an antioxidant character and is electroactive due to the presence of phenolic groups in its molecule.

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Amphenicols are broad-spectrum antibiotics. Despite their benefits, they also present toxic effects and therefore their presence in animal-derived food was regulated. Various analytical methods have been reported for their trace analysis in food and environmental samples, as well as in the quality control of pharmaceuticals.

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The aim of this paper was to assess the total antioxidant capacity of some commercial fruit juices (namely citrus), spectrophotometrically and by the biamperometric method, using the redox couple DPPH. (2,2-diphenyl-1-picrylhydrazyl)/DPPH (2,2-diphenyl-1-picrylhydrazine). Trolox was chosen as a standard antioxidant.

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