Перегляд за автором "Zholudov, Yu. T."

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  • Зображення мініатюри
    Публікація
    Electrochemiluminescent analyzer elan-3d for assay and research
    (ХНУРЭ, 2009) Zholudov, Yu. T.; Rozhitskiy, M. M.
    The work is devoted to development of automated electrochemiluminescent analyzer ELAN-3d aimed at electrochemical/ electrochemiluminescent (ECL) assays including biomedical and environmental applications. The developed device fills the gap of inexpensive ECL equipment aimed at research work. ELAN-3d consists of external unit containing potentiostat and PMT module in a light proof box and PC for control. The external unit is connected to PC via Advantech PCI-1711 data acquisition card. ELAN-3d is mainly intended for investigation of new ECL compositions, development of sensors and assay methods, study of new electrode materials.
  • Зображення мініатюри
    Публікація
    Formation of semiconductor quantum dots for electrochemiluminescent assay by laser fragmentation
    (ХНУРЕ, 2019) Zholudov, Yu. T.; Vasylkovskyi, V. S.; Slipchenko, M. I.; Slipchenko, O. V.; Chichkov, B. N.
    The work describes the use of semiconductor quantum dots (QDs) for electrochemiluminescent assay of amine compaunds and development of the new method for production of shell-free semiconductor nanoparticles using laser fragmentation technique.
  • Зображення мініатюри
    Публікація
    Tris(2,2′-bipyridine)ruthenium(II) electrochemiluminescence using rongalite as coreactant and its application in detection of foodstuff adulteration,”
    (Journal of Electroanalytical Chemistry, 2020) Zholudov, Yu. T.; Abubakar Abdussalam; Fan Yuan; Fangxin Du; Muhammad Nadeem Zafar; Guobao Xu; Xiangui Ma
    The persistent reports on the indiscriminate contamination of foodstuffs with inedible chemicals for economic gains and the high cost of the existing analytical methods for their detection make it necessary to develop simple and cheaper methods for the immediate detection of those toxic substances. Here, we report a fast and highly sensitive electrochemiluminescence (ECL) method for the detection of foodstuffs adulteration with an industrial bleaching agent-rongalite (RGL) for the first time. Under the optimal conditions, the ECL intensity of the tris(2,2′-bipyridine)ruthenium(II) (Ru(bpy)3 2+) increases linearly with the concentration of RGL in the range of 1 μM to 1000 μM with a limit of detection of 0.57 μM (S/N = 3). The developed method has shown excellent selectivity in the presence of co-existing interfering species. The application of the ECL method in this contribution can be extended to other foodstuffs that might be adulterated with RGL other than the one (tofu) investigated here.