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Do Qiagen RNeasy spin columns expire?RNeasy Qiagen column RNA
1 reply to this topic
Posted 16 August 2012 - 10:28 AM
This might be more appropriate for the Qiagen tech support, but I wanted to get an unbiased answer. We have some old RNA isolation kits in the lab, and I'm wondering if I can use the spin columns from the kits. I'm also curious about the Qiashredder columns. As far as I understand it, the RNeasy spin columns are composed of something like 'glass microfiber membrane,' and I don't know why that would expire, but I've heard some people say they do, and others say they don't.
Posted 16 August 2012 - 12:52 PM
I don't think they do, the kits expire themselves as the buffers can change pH and some of the compounds may not be all that stable, but I don't think the columns go off.