Hankinnan kuvaus
University of Jyväskylä (JYU) is planning the purchase of a compound-specific stable isotope ratio mass spectrometer (CS-SIRMS) with chromatographic peripheral inlet systems — gas chromatograph mass spectrometer (GC-MS) and liquid chromatograph (LC).
The procurement includes installation and training 1-2 months after the installation.
Contracting authority (JYU) may suspend the procurement procedure if the tenders exceed the budget available for the procurement. Prior reference of supplying CS-SIRMS equipment is required.
CS-SIRMS Specifications:
Continuous flow stable isotope ratio mass spectrometer compatible with a wide range of sample preparation and inlet systems (especially for GC and LC) suitable for detection of 2H/1H, 13C/12C, 15N/14N, 18O/16O and 34S/32S.
Adequate sensitivity for compound specific SIRMS determinations.
Computer, monitor and software for the operation of the instrument with multiple data processing licences. Internet connection to the software to allow remote diagnosis of problems.
GC-MS Specifications:
— gas chromatograph quadrupole mass spectrometer (GC-MS) with electron ionization (EI) including flame ionization detector (FID) for quantitative analysis and system monitoring,
— furnace link system for compound-specific isotope analysis (CSIA) enabling combined GC-MS-SIRMS analysis,
— possibility to change the GC-column without venting MS,
— 3 separate GC columns for amino acids, fatty acids and sterols,
— tender includes at least 1 extensive mass library for compound identification that includes following compounds: amino acids, fatty acids and sterols,
— autosampler (multi-position, minimum 50 positions) for automated sample feed.
LC Specifications:
— liquid chromatograph (LC) equipped with autosampler (multi-position, minimum 30 positions, with sample temperature control) and column oven,
— separate detector (primarily refractive index (RI) detector for carbohydrates) for quantitative analysis and system monitoring,
— analytical and guard column for carbohydrate LC-SIRMS analysis,
— linking unit enabling compound specific isotope analysis of samples such as carbohydrates, amino acids, alcohols, organic acids and peptides,
— high conversion of organic carbon to CO2 through chemical oxidation in eluent line.