INFICON RQCM - Quartz Crystal Microbalance Research System User Manual
Page 97
RQCM – RESEARCH QUARTZ CRYSTAL MICROBALANCE
GLOSSARY
11-3
Plasma Cleaning
A method that utilizes plasma reaction at the surface of the sample and volatile by-
products are removed by the vacuum pump. The basic instrumentation required this
process includes a reaction chamber, a power supply, and a vacuum source. The
sample being cleaned is put into the chamber which is evacuated by the vacuum pump.
Gas (oxygen) is introduced into the chamber and converted to reactive plasma by the
power supply. For more information vi
Silanization
The chemical conversion of hydroxyl (OH) groups, which often act as adsorption sites
on silica or glass stationary chromatographic phases, with silane coupling agents to
give the inactive -O-SiR3 grouping. Silanization can neutralize surface charges, thus
eliminating non-specific binding.
Redox
An oxidation-reduction reaction; the term "redox" is obtained from the first few letters
of "reduction" and "oxidation."
Mole
That amount of a substance containing the same number of units as 12 g of carbon-12.
Molar mass
The mass of a mole of substance; the same as molecular weight for molecular
substances.
Å
Symbol for angstrom, a unit of length equal to 10
-10
meter.