•
Plasma desorption mass spectrometer
• Matrix-assisted laser desorption/ionization mass spectrometers
coupled
with time-of-flight (TOF) mass analyzers.
Mass
Analysis
Plasma desorption mass spectrometer
Plasma Desorption Mass Spectrometry (PDMS) facility is available
for mass analysis of organic and inorganic compounds. This
technique is specially suitable for thermally labile and non-volatile
organic compounds such as amino acids and peptides. A very
small amount of sample ( a few micro grams ) is adequate for
the analysis, provided it is in the form of solid.
Matrix-assisted
laser desorption/ionization mass spectrometers
Matrix-assisted laser desorption/ionization mass spectrometry
(MALDI-MS) facility is available for mass analysis of organic
and inorganic compounds. This technique is specially suitable
for thermally labile, heavy non-volatile bio-molecules such
as polymers (e.g. proteins, DNA). A very small amount of sample
( a few micro grams ) is adequate for the analysis, provided
it is in the form of solid.
Irradiation
of solid surfaces
A facility for irradiating solid surfaces by 252 Cf fission
fragments (approx. 1M eV/u ) is available. The samples to
be irradiated should preferably be in the form of thin plates.
They should withstand high vacuum conditions. Irradiating
time should be varied according to the necessity.