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Carol Stein

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    XBridge® HPLC Columns
    "This product is nice because it allows us to increase separation resolution without changing the validated method. The X-Bridge columns are part of Waters new smaller particle size columns. The chemistry of the stationary phase is the same as the 5um columns we have used in the past but packing is now 3.5um. We have just started using the columns so I cannot comment on the shelf life difference."

    Application area: HPLC

    8 April 2013
    • Ease of use4 out of 5
    • After sales service5 out of 5
    • Value for money3 out of 5

    4 out of 5

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    Ascentis® C18 HPLC column, 3micron, 15cm L x 4.6mm ID
    "When working in a QA/QC lab, reproducibility and precision are critical. To control the number of variables we only use Sigma-Aldrich columns. Their columns proved to give the best results during our column validation studies. For our application their columns are durable, reliable from batch to batch and reasonably priced. I would recommend this column to any looking to run the same application continuously. (We don't do much method development so I can't comment on how well they would work at separating unknowns.)"

    Application area: Quality

    16 February 2012
    • Ease of use5 out of 5
    • After sales service4 out of 5
    • Value for money4 out of 5

    4 out of 5

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