Hanna Instruments HI 903 - Manual (Page 130)

9-2
METHODS OPTIMIZATION
9.2.4 Liquid Samples ........................................................................................ 9 - 1 1
9.2.5 Sample Preparation Techniques ................................................................... 9 - 1 2
9.2.5.1 Internal Extractions .........................................................................................9 - 1 2
9.2.5.2 Dilutions ..........................................................................................................9 - 1 2
9.2.5.3 External Dissolution .........................................................................................9 - 1 3
9.2.5.4 External Extractions .........................................................................................9 - 1 3
9.2.5.5 Homogenization ..............................................................................................9 - 1 4
9.2.5.6 Heating...........................................................................................................9 - 1 4
9.3 Karl Fischer Reagent System ................................................................ 9-15
9.3.1 Reagent System Classification ................................................................... 9 - 1 5
9.3.1.1 One-Component Reagent Systems .................................................................. 9 - 1 5
9.3.1.2 Two-Component Reagent Systems .................................................................. 9 - 1 5
9.3.1.3 Reagents for Aldehydes and Ketones ............................................................... 9 - 1 5
9.3.2 Choosing and Modifying a Solvent ............................................................... 9 - 1 6
9.3.3 Water Standards ......................................................................................... 9 - 1 6
9.3.4 Standardizing the Titrant ............................................................................. 9 - 1 7