Determination of moisture in papers by Karl Fischer method
نویسندگان
چکیده
منابع مشابه
Determination of Moisture in Powder and Lyophilised Saffron (Crocus sativus L.) by Karl Fischer Method
Saffron is a spice obtained from the dried stigmas of the purple-flowered saffron crocus (Crocus sativus L.). The determination of the water content in saffron is very important in order to establish its microbiological stability and consequently to determine the commercial value. The average moisture content in dried saffron powder ranges between 10-12% causing a slow degradation of the produc...
متن کاملMeasuring water content of feces by the Karl Fischer method.
We describe a technique for measuring the water content of stools by the Karl Fischer method. The analysis is based on removal of water into a mixture of methanol/chloroform (1/2), after dispersion of the stool by sonication in presence of solvent. An aliquot of the solution thus obtained is placed in themeasuring cell of a Karl Fischer apparatus and then analyzed in the classic way. We further...
متن کاملSimple Modification of Karl-Fischer Titration Method for Determination of Water Content in Colored Samples
The most commonly used technique for water content determination is Karl-Fischer titration with electrometric detection, requiring specialized equipment. When appropriate equipment is not available, the method can be performed through visual detection of a titration endpoint, which does not enable an analysis of colored samples. Here, we developed a method with spectrophotometric detection of a...
متن کاملWater Determination in Bee Products Using the Karl Fischer Titration Method
One of the most widely used techniques for water content determination in food is Karl Fischer (KF) titration. Compared to other methods based on loss of weight, the primary advantage of the Karl Fischer titration method is its high selectivity to water. The aim of the study was to develop and validate the Karl Fischer method for moisture determination in pollen loads, royal jelly, bee venom an...
متن کاملNew Approaches to Moisture Determination in Complex Matrices based on the Karl Fischer Reaction in Methanolic and Non-Alcoholic Media
Moisture determination is of great importance in the production and use of many substances. For example, the moisture content can affect the efficiency of a chemical reaction or determine the shelf life of pharmaceuticals or foods. The standard method for moisture determination is Karl Fischer (KF) titration, based on either volumetry or coulometry. This thesis concerns new approaches to trace ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: journal of the Japan Society for Testing Materials
سال: 1954
ISSN: 0372-7971
DOI: 10.2472/jsms1952.3.333