What are the methods for determining vitamin C content? What are the advantages and disadvantages of each

There are several methods for the determination of vitamin C, including redox titration using I2 or dichloroindophenol

(DPI). Generally, titration is a rapid,

easy, and accurate technique that accurately determines the amount of the substance being measured by the equivalent reaction

of the titrant and the titrated substance.

DPI has good

selectivity for Vitamin C, making it an ideal oxidizing agent.

The traditional titration method is a manual titration in which the

end point is determined according to the change in the color of the indicator, and the content of the measured substance is calculated by measuring the consumption of the titrant. Manual

manual titrations have many shortcomings: manual control is subject to large errors, calculations are complicated, and special indicators are required for different

similar reactions. METTLER TOLEDO's Automatic Potentiometric Titrator

solves this problem by measuring the change in potential during the titration reaction to determine the end

point, with fully automated operation and calculations, fast measurements and accurate results. METTLER TORI

Many titrators are equipped with memory card software packages that store proven titration methods, making it easy to

quickly solve real-world applications and use them as experimental methods for new determinations with a few minor modifications.

The METTLER TORI titrators are also equipped with a memory card software package that stores proven titration methods.