Webinar recording: Fundamentals of Karl Fischer titration
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- čas přidán 6. 08. 2024
- Karl Fischer titration is a universal method for water content determination in technical products (plastics, oil, gases), cosmetic products, pharmaceutical products, food products, and many more.
Compared with other techniques for moisture content determination, Karl Fischer titration is selective (i.e., measures only water and no other volatile components). This technique offers a wide measuring range from ppm to per cent and takes only 1 to 3 minutes for a determination. Furthermore, almost any sample can be analyzed.
This webinar covers the basics of volumetric and coulometric Karl Fischer titration, from the stoichiometry and the pH dependency of the reaction to the reagents used and the titer determination.
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0:00 Introduction
1:23 Fundamentals of Karl Fischer titration
1:30 Universal method for water content determination
4:09 Stoichiometry
5:31 Reagents
7:22 pH dependency
9:34 Reagents
13:42 Titer determination
17:37 Generator electrodes
22:51 Comparison generator electrodes
28:27 Volumetry or coulometry? Which method should you choose?
30:45 Endpoint indication
38:19 Gas extraction - When to use?
40:13 Gas extraction - Principle
42:58 Basics of Karl Fischer titration
44:23 Questions & Answers - Věda a technologie