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Thread: Liquid nitrogen purity for biostorage

  1. #1 Liquid nitrogen purity for biostorage 
    New Member
    Join Date
    Sep 2009
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    2
    Hi,

    Iím researching liquid nitrogen producing systems to make liquid nitrogen to fill
    LN2 dewers to storage lab samples in the nitrogen vapour.
    A lot of the systems produce different ranges of purity (99% - 99.9999%).
    What purity is acceptable or does it really? Could I use purities as low as 98%.

    Thanks,
    Phil


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  3. #2  
    Forum Ph.D.
    Join Date
    Jan 2009
    Posts
    951
    Since I assume your samples will be in sealed containers , LN2 purity is irrelevant
    You are making yuor own???


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  4. #3  
    New Member
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    Sep 2009
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    The samples will be in sealed containers/blood bags.
    We plan to get a 20l/h system and run it 5 nights a week to get night-time savings :P
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