VicoMeter Karl Fischer moisture analyzers are typically calibrated and verified using standards such as methanol-water standard solutions, water-containing sodium tartrate, distilled (deionized or pure) water, and water-saturated toluene. This article introduces the calibration substances, calibration methods, and accuracy verification procedures commonly used with VicoMeter coulometric and volumetric Karl Fischer moisture analyzers.
As a classic moisture determination method, Karl Fischer titration is suitable for measuring water in a wide range of organic and inorganic substances. Because compounds vary in their properties, they fall into two categories: those that can be analyzed directly and those that cannot.
The biggest difference between the volumetric and coulometric methods is that I2differ in their source: in the volumetric method, I2comes from the titrant reagent, while in the coulometric method, I2is produced by electrolyzing an electrolyte containing I-is generated by electrolysis of the electrolyte.
Recently Viewed Products
Copyright © Jiangsu Victor Instrument Meter Co., Ltd. All rights reserved | Sitemap | Technical Support: VicoMeter Operations Center
