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The working principle of Soxhlet extraction
The fat analyzer grinds the solid matter before extraction to increase the solid-liquid contact area. Then, put the solid matter in the filter paper bag and put it in the extractor. The lower end of the extractor is connected to the round bottom flask containing the leaching solvent (anhydrous et...Read more -
Soxhlet extraction and application of fat analyzer
Franz Von Soxhlet published one of his most important results in the field of lipid technology in 1879, after his papers on the physiological properties of milk in 1873 and on the mechanism of butter production in 1876: He invented a new device for extracting fat from milk, which was later used w...Read more -
Introduction of automatic Kjeldahl apparatus
Automatic Kjeldahl nitrogen determination instrument function operation: The functional operations performed in the instrument test sample are as follows: dilution, reagent addition, distillation, titration, effluent discharge, result calculation, printing. Dilution: dilute the digested sample ...Read more -
The working principle of Kjeldahl nitrogen determination
According to the principle of Kjeldahl nitrogen determination, three steps are required for determination, namely digestion, distillation and titration. Digestion: Heat nitrogen-containing organic compounds (proteins) together with concentrated sulfuric acid and catalysts (copper sulfate or Kjel...Read more -
New product Kjeldahl nitrogen analyzer, Soxhlet fat analyzer, automatic digestion product exchange meeting
Today, in the meeting room of Shandong Derek Instrument Co., Ltd., the 2021 analytical instrument new product exchange meeting was held, involving DRK-K616 automatic Kjeldahl nitrogen analyzer, DRK-K646 automatic digestion instrument, and DRK-SOX316 fat meter. Products. This exchange meeting was ...Read more -
GBT453-2002 Supplement to Tensile Strength of Paper and Board (Constant Speed Loading Method)
Attention please! For the determination of the tensile strength of GBT453-2002 paper and paperboard (constant speed loading method), today the editor draws the key points for everyone! Key 1: Principle The tensile strength tester stretches the sample of the specified size to break under the condi...Read more
