A Karl Fischer method for determining water (dry matter) in animal feed and forages was collaboratively studied. Water was extracted from animal feed or forage material into methanol-formamide (1 + 1) directly in the Karl Fischer titration vessel by high-speed homogenization. The water was titrated at 50 degrees C with one-component Karl Fischer reagent based on imidazole. Ten blind samples wer...

History of Science and Statistical Education: Examples from Fisherian and Pearsonian schools Paper presented at the 2004 Joint Statistical Meeting, Toronto, Canada Chong Ho Yu, Ph.D. [email protected] website: http://www.creative-wisdom/pub/pub.html Abstract Many students share a popular misconception that statistics is a subject-free methodology derived from invariant and timeless mathematic...

Ipidacrine hydrochloride is pharmaceutically active compound that forms variety of crystalline modifications which differs by solvent type and content in crystalline structure. These crystalline forms analyzed by powder x-ray diffraction, differential thermal analysis, thermogravimetry and Karl Fisher titration. Obtained crystalline forms include two monohydrates, two hemihydrates, two anhydrou...

A flow-injection system with a biamperometric flow-through detector provided with two platinum plate electrodes was tested for the determination of water with a two-component pyridine-free Karl Fischer reagent. The response was shown to be linear in the concentration range 0.03-0.11% water in methanol, ethanol or 2-propanol, with methanol as the carrier solvent. The maximum sampling frequency w...