As the global population grows and science and technology development evolve, fulfilling basic human needs has been even more linked to technological solutions. In this review, we present an overview of the biosensor market and discuss the factors that make certain countries more competitive than others in terms of technology and innovation and how this is reflected in the trends in publication and patent filling. Additionally, we expose briefly how the COVID-19 pandemic acts as a catalyst for the integration of research and development, business, and innovation sectors to bring solutions and ideas that have been predicted as tendencies for the future.
View Article and Find Full Text PDFBoron-doped diamond (BDD) electrodes present several notable properties, such as the largest potential window of all electrode materials (especially in anodic potentials), low background and capacitive currents, reduced fouling compared to other electrodes, mechanical robustness, and good stability over time. On the other hand, flow-based systems are known as well-established approaches to minimize reagent consumption and waste generation and with good compromise between sample throughput and analytical performance (mechanization of chemical assays). This review focuses on the use of BDD electrodes for electrochemical detection in flow systems, such as flow injection analysis (FIA), batch injection analysis (BIA), high performance liquid chromatography (HPLC), and capillary electrophoresis (CE).
View Article and Find Full Text PDFAmmonium and diphenhydramine are active ingredients commonly found in the same pharmaceutical preparations. We report, for the first time, a sub-minute method for the simultaneous determination of ammonium and diphenhydramine. The method is based on capillary electrophoresis with capacitively coupled contactless conductivity detection.
View Article and Find Full Text PDFIn this work, a batch-injection analysis system with square-wave voltammetric (BIA-SWV) detection was applied for the first time to the simultaneous determination of inorganic (zinc) and organic (naphazoline) species. Both compounds were detected in a single run (70 injections h(-1)) with a small injection volume (∼100 µL). The calibration curves exhibited linear response range between 3.
View Article and Find Full Text PDFIn this work, the possibility of simultaneous determination of three compounds with a single-injection step using batch injection analysis with multiple pulse amperometric detection (BIA-MPA) is demonstrated for the first time. A sequence of three potential pulses (+1.25 V, +1.
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