Determination of Ascorbic Acid (Vitamin C) and Its Compounds
28 Mar 2014Ascorbic acid is found in many food products, either as natural vitamin C or as antioxidant. One simple and easy way to determine it is titration. This application bulletin presents potentiometric and photometric determination of ascorbic acid using 2,6-dichloroindophenol, as well as iodometric and polarographic approaches.
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Optrode Sensor for Titration
Metrohm AGSensor for titration with photometric endpoint recognition. Eight wave lengths: 470, 502, 520, 574, 590, 610, 640 and 660 nm 100% solvent-resistant due to glass shaft Compact and space-saving Very easy to clean Easy to change the wave lengths Both new and existing titration systems can be furnished with the optrode. The power supply is provided directly through the USB interface of a Metrohm instrument (Titrino plus, Ti-Touch, Titrando, USB sample changer). With older models without a USB interface, the power supply can also be provided by means of an optional USB power supply unit.