MALDI-MS-MS mass spectrometer

MALDI-MS-MS mass spectrometer will be acquired for Department of Chemistry, University of Helsinki.

MALDI-MS-MS mass spectrometer will be acquired for Department of Chemistry, University of Helsinki. Minimum requirements for the instrument: • Ionization source is capable of operating both in positive/negative ion modes. • Possibility to operate in linear and reflectron mode. • Pulsed ion extraction. • Mass range extending at least up to 500 kDa. • Mass resolution of 1000 FWHM or higher in linear mode and 20 000 FWHM or higher in reflectron mode. • Mass accuracy of 200 ppm or better in linear mode and 50 ppm or better in reflectron mode using external calibration. • MS-MS capability. • Software for advanced polymer analysis and basic protein analysis, 2 licenses. • The system must have warranty at least for 12 months. • The policy for software upgrades and their pricing must be included. • The instrument must be new one. No prototypes allowed. • 10 steel target plates. • A windows 10 computer to operate the instrument with all the necessary programs installed. • The instrument is CE-marked.

In evaluation part: "Shown use in relevant scientific/expert literature, (evaluated on a moving scale by scientist at the Faculty of Science). Please load the information for the evaluation. The more the instrument has been used in relevant scientific literature, the more points. Scientific literature is evaluated in two categories; polymer analysis (0-7 points, and protein analysis 0-3 points), max. 10 points" is replaced with "Shown use in relevant scientific/expert literature. Please load the information for the evaluation. Literature considered relevant is such where the instrument has been used to analyze molecular weight distributions and structural details preferably of synthetic block copolymers, or secondarily of synthetic homo polymers. For protein analysis the relevant literature is structural analysis of chemically modified proteins and proteins produced by genetic modification. Scientists at the Faculty of Science will evaluate the proven ability of the instrument in analysis of the above stated polymer and protein systems on a moving scale. If the number of publications is limited due to recent introduction of the tendered model, then also publications where the analysis was performed using an earlier model can be taken into account, provided that the analysis could be performed also with the tendered one. A list of relevant publications can also be accepted instead of the publications themselves. Scientific literature is evaluated in two categories; polymer analysis (0-7 points, and protein analysis 0-3 points), max. 10 points. The number of publications on polymer analysis should be 14 at maximum and publications on protein analysis should be 6 at maximum, and the combined number of publications must not exceed 20."