Hanna-instruments HI 901 Instrukcja Użytkownika Pobierz pdf (Strona 135)

A3-3

APPENDIX 3

A3 MULTIPLE EQUIVALENCE POINTS (HI 902 only)

A3.1 Applicability Domain

In case of:

 determining the components concentration from a synthetic mixture (e.g. Mixture of

HCl, CH

COOH, NH

Cl).

 determining the concentration of a polyprotic acid in its titrable ionization stages

(e.g. H

, two equivalence points in aquogenos medium).

A3.2 Perform a Multi-Equivalence Point Titration

With the information provided above, set up the method parameters as follows:

 Set the end point mode as equivalence end point (mV or pH).

 Set the number of equivalence points (up to 5 points) to be found.

 Select the end point determination (like in standard titration).

 Set the rest of method parameters and save the modification.

1 2 ... 130 131 132 133 134 135 136 137 138 139 140 ... 147 148

Brak uwag

Hanna-instruments HI 901 Instrukcja Użytkownika Strona 135