Hanna-instruments HI 904 Manuale Utente Scaricare il pdf (Pagina 154)

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.

1 2 ... 149 150 151 152 153 154 155 156 157 158 159 ... 179 180

Nessun commento

Hanna-instruments HI 904 Manuale Utente Pagina 154