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Updated: Aug 16, 2026

Simple In-House Ultra-High Performance Capillary Column Manufacturing with the FlashPack Approach
Published on: December 4, 2021
Simple and effective technical procedures for the packing and application of nanospray PicoFrit HPLC columns for
Laurence C Howells1, Adam O Whelan, Martin J Woodward
1Department of Transmissible Molecular Biology, Veterinary Laboratories Agency, Addlestone, Surrey, UK.
Abstract:
A simple procedure was developed for packing PicoFrit HPLC columns with chromatographic stationary phase using a reservoir fabricated from standard laboratory HPLC fittings. Packed columns were mounted onto a stainless steel ultra-low volume precolumn filter assembly containing a 0.5-microm pore size steel frit. This format provided a conduit for the application of the nanospray voltage and protected the column from obstruction by sample material. The system was characterised and operational performance assessed by analysis of a range of peptide standards (n = 9).
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