Hanna-instruments HI 903 Manual do Utilizador descarregar pdf (Página 198)

TITRATION THEORY

1.3 Advantages and Disadvantages of Titrations

Some advantages of titrations, as an analytical technique, are:

• More precise results than many instrumental methods, such as measurement

by electrode, the accuracy of the measurement is up to 0.1%;

• Simple methods, reasonable capital costs, and easy training;

• Suitability to measure major components of a mixture or product;

• Automation can reduce time and labor spent on each analysis.

Some disadvantages of titrations are:

• Time it takes to prepare standards and titrants;

• Good technique is required to achieve precise results (training and practice

required);

• Not suitable for determining trace or minor components of a mixture or product;

• Limited dynamic range, it may require additional sample preparations (dilution)

and repeat analyses.

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Hanna-instruments HI 903 Manual do Utilizador Página 198