News

  • 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 ...
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  • 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...
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  • 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 ...
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  • 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...
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  • Brief introduction of electronic fabric tearing machine

    Electronic fabric tearing tester is suitable for testing the tear resistance of woven fabric, blanket, felt, weft fabric, and nonwoven fabric. Electronic fabric tearing device features: 1, the instrument with special aluminum profile table, shell metal paint processing, all the hammer made of s...
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  • Soxhlet extraction principle fat tester brief introduction

    Soxhlet extraction fat tester is based on the principle of Soxhlet extraction, the separation of organic compounds such as fat instrument, the instrument has soxhlet standard method (national standard method), soxhlet thermal extraction, hot leather, continuous flow and CH standard thermal extrac...
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