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  • Low 260/230 for MasterPure Gram+ Kit

    I'm using Masterpure's Gram Positive DNA purification kit, trying to isolate
    DNA from Propionibacterium acnes. Each attempt I get really graphs from the nanodrop.

    I defnitely have DNA in my samples, because i'll have a high absorbance at 260, but sometimes the absorbance is even HIGHER at 230 nm.

    I've tried doing an extra purification step, where I repeat the steps where you add isopropanol, spin at 4C, remove the isopropanol, wash with ethanol, and resuspend in 35ul TE.

    Has anyone experienced DNA isolation where they had a high 230 absorbance, and what did you do to fix it?

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