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    Home > Chemicals Industry > Chemical Technology > Determination of moisture content of Zuojin Wan (shuiwan), Jiawei Baohe Wan (shuiwan), and Shuanghuanglian for injection (lyophilized)

    Determination of moisture content of Zuojin Wan (shuiwan), Jiawei Baohe Wan (shuiwan), and Shuanghuanglian for injection (lyophilized)

    • Last Update: 2022-06-15
    • Source: Internet
    • Author: User
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    Determination of water content of Zuojin Wan (water pill)

    test record

    Balance model: CT225D

    Unit: g

    Constant weight of empty weighing bottle at 105°C for 5 hours: 18.


    Constant weight of empty weighing bottle at 105°C for 1 hour: 18.


    Sample processing before sampling: crushing

    Sampling amount: 1.


    After drying at 105°C, weighing bottle and sample are added and dried for 5 hours: 19.


    After drying at 105°C, the weighing bottle is added with the sample weight and dried for 1 hour: 19.


    Moisture (%): 7.


    Standard stipulation: no more than 9.


    Conclusion: meet the regulations

    Calculation:


    Moisture inspection of flavored Bowa pill (water pill)

    test record

    Balance model: CT225D

    Unit: g

    Drying conditions: normal pressure

    Drying temperature: 105℃

    Constant weight of empty weighing bottle for 5 hours: 18.


    Constant weight of empty weighing bottle for 1 hour: 18.


    Sample processing before sampling: crushing

    Sampling: 1.


    After drying, weighing bottle + sample weight and drying for 5 hours: 19.


    After drying, weighing bottle + sample weight drying for 1 hour: 19.


    Moisture (%): 7.


    Standard stipulation: no more than 9.


    Conclusion: meet the regulations

    Calculation:


    2.
    Vacuum drying method

    Determination of Moisture Content of Shuanghuanglian for Injection (Freeze-dried)

    test record

    Balance model: CT225D

    Unit: g

    Drying in an empty weighing bottle in a phosphorus pentoxide vacuum desiccator for 24 hours: 15.
    2480

    Sampling amount: 0.
    5032

    After drying, empty weighing bottle and sample weight, phosphorus pentoxide and drying in a vacuum desiccator for 24 hours: 15.
    7326

    Moisture (%): 3.
    7

    Standard stipulation: no more than 9.
    0%

    Conclusion: meet the regulations

    Calculation:

     

     

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