Instrumentation of Department of Chemistry of Ions in Gaseous Phase
A: Major Equipment - Mass Spectrometry
1) Selected ion flow tube mass spectrometer Profile 3 SIFT-MS (Instrument Science Ltd, UK) - chemical ionisation using H3O+, NO+ and O2+ reagent ions selected from a microwave discharge - quadrupole mass spectrometric ion detection and counting in m/z range 10 - 300 - positive ion molecule reaction kinetics and determination of rate coefficients and product ion branching ratios - mouthpiece breath sampling inlet heated to 70 C - capillary headspace sampling inlet heated to 70 C - absolute quantification of volatile compounds in range 10 - 10 000 ppbv
2) Selected ion flow tube apparatus Mk1 (Europa Scientific Ltd, UK) - electron ionisation ion source - injection mass filter operating for both positive and negative modes - quadrupole mass spectrometric ion detection and counting in m/z range 10 - 300 - temperature variable flow tube (200 - 400 K) - positive and negative ion molecule reaction kinetics and determination of rate coefficients and product ion branching ratios - study of planetary atmospheric ion chemistry
3) Hybrid tandem mass spectrometer ZAB2-SEQ (Micromass, UK) - electron ionisation ion source - double focusing mass spectrometer - direct inlet probe, DIP - mass range m/z 15 000 - 8 keV ion energy - neutralisation - reionisation facility
4) GC/MS FOCUS GC ITQ 700 ion trap mass spectrometer (Thermo Fisher Scientific Inc., USA) - electron ionisation and chemical ionisation ion source - ion trap mass spectrometric ion detection range m/z 20 - 650 - manual split/splitless injector - solid phase microextraction SPME - mid-polar columns for volatile organic compounds (including TR1, DB624)
5) Double-focusing mass spectrometer VG 7070E (Micromass, UK) - electron ionisation EI ion source - double focusing mass spectrometer - direct inlet probe, DIP - home made data system - renovated electronics
6) LC/MS/MS tandem quadrupole mass spectrometer, Quattro Premier XE (Waters, USA) - electrospray ionisation ESI ion source - triple quadrupole tandem mass spectrometer MS/MS - high performance liquid chromatography separation HPLC - mass range m/z 4000 - modified for ion-molecule reaction studies
B: Available Methods
1) Select ion flow tube mass spectrometry - quantification of volatile metabolites in breath, liquid headspace analyses - 1 s real time resolution, time dependence of concentrations - bacterial cultures, environmental and food samples
2) Electron ionisation EI mass spectrometry - analyses of organometallic compounds using a dedicated direct sample inlet probe
3) LC/MS - liquid chromatography with mass spectrometric detection
4) Ion chemistry - determination of rate coefficients and product ion branching ratios at a range of temperatures and energies
C: Auxiliary equipment
1) ZNC3 Vector Network Analyzer (Rohde & Schwarz, s.r.o) - analyses of electronic circuits in 9kHz - 3GHz range - calibration set ZV-Z170
2) Gas standard generator (KIN-TEK) - permeation tubes - Permeation tube oven with wide temperature range controlled to 0.1 °C
3) GilAir sample collecting pump (Sensidyne) - tubes for thermal desorption, TD. - 1 - 5 000 mL/min - Small-scale autoclave for sterilisation of tools and solutions
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