PRODUCTION OF HIGH QUALITY MASS SPECTRA using the following ionisation techniques in both polarities:
Electron Ionisation (EI).
Chemical Ionisation (CI) (ammonia or methane).
Liquid Secondary Ion Mass Spectrometry (LSIMS), using Caesium ions (commonly called "FAB", Fast Atom Bombardment).
Electrospray Ionisation (ESI) at low resolution on ZQ4000, or at high resolution on Orbitrap.
Atmospheric Pressure Chemical Ionisation (APCI).
Matrix-assisted Laser Desorption/Ionisation (MALDI): services offered; technical details.

ACCURATE MASS MEASUREMENT of selected ions with <5ppm precision using high resolution with any of the above ionisation techniques. Details.

SEPARATION TECHNIQUES with mass spectrometry, and other services available by special arrangement:
Coupled capillary gas chromatography - mass spectrometry (GC-MS) to separate and identify the components of volatile mixtures Thermal desorption, cold trapping injection and a variety of other GC-MS methods with EI or CI.
Coupled high performance liquid chromatography - mass spectrometry (LC-MS) for the analysis of mixtures.

TANDEM MASS SPECTROMETRY (MS-MS) using a range of techniques.
Understanding your data - examples of data output with explanatory labels