Can the buffering capacity of a given biological solution be measured using electrical impedance spectroscopy?
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Yes, the buffering capacity of a biological solution can be measured using electrical impedance spectroscopy. Good's zwitterionic buffers have been shown to have improved performance over standard electrolyte buffers in impedance spectroscopy measurements of bacterial suspensions . An optimized bioimpedance sensor based on Van Der Pauw's theory has been proposed to measure the electrical conductivity of biological solutions, including buffers, at specific frequency bands . A buffer solution containing surfactant has been developed for electrochemical impedance spectroscopy to detect pathogenic bacteria and viruses . Impedance spectroscopy has also been used to study the complexation process between biopolymers in bulk solutions, providing accurate measurements of resistance and capacitance parameters . Therefore, electrical impedance spectroscopy can be utilized to measure the buffering capacity of biological solutions, offering a valuable tool for studying their electrical properties and their impact on impedance sensing.
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