Thermo Scientific Dionex ICS-2000, Operator'S Manual

Page: 377 / 390

G • Glossary
Doc. 031857-03 4/06
G-5
Siemens (S)
Unit measure of conductance; the reciprocal of the electrical resistance of a
solution.
Suppressor
A device used to minimize eluent conductivity and convert sample species to a
common form, thus increasing detection sensitivity.
Temperature Coefficient
The percent of change in the conductivity of a solution with a 1
o
C change in
temperature. Every solution has a characteristic temperature coefficient which is
determined experimentally.
Theoretical Plates (N)
See Column Efficiency .
Void Volume (V
0
)
The volume occupied by the eluent in a packed column. This volume includes the
volume between the injection valve and the column, as well as between the
column and the detector cell. Unretained components are eluted in the void
volume.