Yes, our µPAC™ columns are fabricated by etching from a crystalline silicon wafer following lithographic definition of a pillar array. This means the µPAC™ columns consist of one piece of solid material. The columns are completely symmetrical and do not contain any frits. So, you can easily backflush the column without the risk of moving or breaking particles from the separation bed. To reverse the column, you just need to swap the inlet and outlet unions.

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How easily can I clog the µPAC™ columns?

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