ASM 2.1L user manual V6815
31
Abbreviations and terminology
All wetted components of a device, e. g. flow cells of detectors or pump
heads and pressure sensors for pumps, have to be flushed first with iso-
propanol and then with water before being maintained, disassembled or
disposed.
Abbreviations and terminology
Here you can find information on the abbreviations and terminology used
in this system manual.
Term
Explanations
Backflushing
Backflushing of columns or precolumns to separate
heavily retarding substances by changing the flow
direction.
Channel
The connection of two valve ports by a special form of
rotor seal
Dead volume
The dead volume of an HPLC system is the volume of
the mobile phase, which is required to fill all hollow
spaces of the HPLC system like capillaries, mixing
chamber, valve etc. except the column. The dead vol-
ume should be as small as possible.
Degasser
Degasser module for fluids
GLP
Good Laboratory Practice – quality assurance for labo-
ratories
Gradient
Time-dependent composition of solvent (mobile
phase) on low-pressure or high-pressure side of sys-
tem
HPG
Operating mode of HPLC system; separation of sam-
ple mixtures using high pressure gradient of pump
HPLC
High performance liquid chromatography
Integration
time
The integration time determines how fast the detector
reacts to changes in absorbance.
Isocratic
Sample mixtures separated with a constant composi-
tion of solvent
IQ
The IQ is the certification on the functionality of the
device.
LED
Light-emitting diode
Luer-lock can-
nula
Standardized connection system between syringes
and cannulaes
OQ
Comprehensive functionality test of individual compo-
nents in a system (operation qualification)
Port
Connector on a valve
Retarding
A substance which has a delayed elution caused by an
interaction with the column fill material.
Router
Module in computer network that checks data packets
and forwards them.