Summary
HPLC-chip/MS is a novel nanoflow analytical technology conducted on a microfabricated chip that allows for highly efficient HPLC separation and superior sensitive MS detection of complex proteomic mixtures. This is possible through on-chip preconcentration and separation with fluidic connection made automatically in a leak-tight fashion. Minimum precolumn and postcolumn peak dispersion and uncompromised ease of use result in compounds eluting in bands of only a few nanoliters. The chip is fabricated out of bio-inert polyimide-containing channels and integrated chip structures, such as an electrospray emitter, columns, and frits manufactured by laser ablation technology. Meanwhile, a variety of HPLC-chips differing in design and stationary phase are commercially available, which provide a comprehensive solution for applications in proteomics, glycomics, biomarker, and pharmaceutical discovery. The HPLC-chip can also be easily integrated into a multidimensional separation workflow where different orthogonal separation techniques are combined to solve a highly complex separation problems. In this chapter, we describe in detail the methodological chip usage and functionality and its application in the elucidation of the protein profile of human nucleoli.
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Vollmer, M., van de Goor, T. (2009). HPLC-Chip/MS Technology in Proteomic Profiling. In: Foote, R., Lee, J. (eds) Micro and Nano Technologies in Bioanalysis. Methods in Molecular Biology™, vol 544. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-59745-483-4_1
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DOI: https://doi.org/10.1007/978-1-59745-483-4_1
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