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Protein Precipitation Plates for Effective Sample Preparation

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Incorporating a novel dual hydrophobically treated matrix filter, Microlute™ Protein Precipitation Plate from Porvair Sciences is aimed at labs looking to remove interfering proteins from serum, plasma or even whole blood samples prior to analysis by Liquid Chromatography/Mass Spectrometry (LC/MS).

Biological samples commonly contain proteins that interfere with downstream applications such as LC/MS analysis. Microlute™ Protein Precipitation Plates (PPP) use the CRASH method, in which protein is denatured with acetonitrile and the flocculant filtered out, allowing 96 samples to be processed in parallel.

Based on the industry standard MicroLute™ format, but without the chromatographic sorbent, protein “crashes” out of solution and precipitates directly in each well when acetonitrile is added, thus solving all common problems associated with the CRASH technique of protein clean-up. The novel dual frit, hydrophobically treated matrix used by the Microlute™ PPP means that there is no “wetting out” and leakage of sample before the application of vacuum.

Its ease of use, high performance and reliability make the Microlute™ PPP a suitable protein precipitation plate of choice for the pharmaceutical industry.