For many years, we were highly confident in the quality of our self-packed capillary columns. However, we eventually had to acknowledge that the ProtumLink Core columns clearly outperform our own columns packed with 1.5 µm C18 beads in terms of robustness, reproducibility and the number of protein IDs obtained. We therefore decided to discontinue packing our own capillary columns, an easy decision given how reasonably priced the ProtumLink columns are.

We use ProtumLink Connect columns in our core facility because we are impressed by their performance, reproducibility, and long service life. Based on this experience, it was an obvious decision to use these columns exclusively on a larger scale, given their balanced performance-to-price ratio.

The columns from ProtumLink we evaluated demonstrated excellent performance, robustness and long-term stability. They were tested for global proteome profiling as well as complexome profiling, enabling the analysis of large sample series over extended periods (weeks to months) without significant changes in electrospraying and backpressure. These columns are highly user-friendly, flexible and truly plug-and-play, while delivering consistent and reproducible results. The products are well suited as a robust and one-stop solution for routine and high-throughput proteomics workflows.