Diduco is dedicated to making it easier for you to improve your liquid chromatography analysis results. Please reach out to discuss any questions you might have regarding our services and products.
I’ll be happy to answer any questions you might have regarding our products and services.
Tobias Jonsson
CEO, PhD in chemistry
We are dedicated to making it easier for you to improve your liquid chromatography analysis results. Please reach out to discuss any questions you might have regarding our services and products.
Prof. Knut Irgum constructed and delivered the first membrane suppressor for ion chromatography from his company SciTech AB in Umeå, which later was developed into SeQuant AB. The original suppressor design was later refined, and the product portfolio expanded to include also a suppressor regenerator plus accessories for ion chromatography.
SeQuant AB pioneered hydrophilic interaction chromatography by launching the zwitterionic column ZIC-HILIC and later writing the technical booklet “A Practical Guide to HILIC” which was printed in more than 10 000 copies and was immensely popular for download. In the coming years, Prof. Irgum’s research group at Umeå University continued to develop new stationary phases for HILIC and published the review “Hydrophilic Interaction Chromatography” which still is the most cited paper ever in Journal of Separation Science.
Merck GmbH acquired SeQuant AB for its ZIC-HILIC column technology and ion chromatography suppressors and merged these products into their portfolio. Additional products were developed until the site in Umeå was transformed into a global centre for technical support of analytical chromatography in general and high-performance liquid chromatography in particular.