Potency testing: Is anyone familiar with Karl-Fisher titration?

Let me preface this with the fact that I am not an analytical chemist (I’m a materials engineer). Are any analytical chemists on GNet familiar with Karl-Fisher titration methods and how WC analysis might affect
% error in potency results? I have some questions and its tough understanding the differences in protocols across labs:

  • What are the various WC analysis techniques for flower?
  • How often are labs using titration vs. reagent free methods?
  • What are the associated % error rates between different WC methods, and how does this translate to error in potency results?
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@LabOwner and @LabEmployees may be able to help with this one. It’s a little above my understanding…

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How do you pick a laboratory and how do you audit the laboratory you use?

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Here is the simplest thing I could find. If you want more I have to pull out my analytic chemistry books.

I just remember the statical errors in the method was -/+ 0.1 %.

http://dmsc2.dmsc.moph.go.th/webroot/drug/km/lab_analysis/Karl%20Fischer%20Titration.pdf

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