Instrument: Mass Spectrometer

Instrument Short Name: Mass Spec
(http://vocab.nerc.ac.uk/collection/L05/current/LAB16/)
Instrument Description:

General term for instruments used to measure the mass-to-charge ratio of ions; generally used to find the composition of a sample by generating a mass spectrum representing the masses of sample components.

PI supplied instrument name: Thermo Fisher (San Jose, Ca) linear ion trap –Orbitrap (LTQ-OT) hybrid tandem mass spectrometer
Dataset-specific description

"The hybrid Fourier Transform (FT) mass spectrometer(MS) combines a linear ion trap
MS and the Orbitrap mass analyzer. Ions generated by API
are collected in the LTQ XL followed by axial ejection to the
C-shaped storage trap which is used to store and collisionally
cool ions before injection into the orbital trap. The ions
transferred from the C-Trap are captured in the orbital trap
by rapidly increasing the electric field and the detection of
the image current from coherent ion packets takes place
after the voltages have stabilized. Signals from each of the
orbital trap outer electrodes are amplified and transformed
into a frequency spectrum by fast Fourier transformation
which is finally converted into a mass spectrum." (From Fisher Scientific)