Reference
Varian, Inc.
User Manual Micro-GC
Page 33
COLUMN
A variety of column configurations are possible on the Micro-GC . The columns you
require for your specific analysis have been installed at our factory. Other configurations
are, of course, possible, but changing the column modules is a delicate matter that can
only be handled by one of our service engineers. Table I shows several standard
columns as supplied in the Micro-GC and selected applications. Other columns are
available by contacting Varian, Inc.
Column/Phase type
Target components
Molsieve 5Å
Permanent gases, methane, CO, NO ,etc.(H.R. for O2-Ar
baseline separation). Optional Retention Time Stability (RTS)
configuration
Hayesep A
Hydrocarbons C1-C3, N2, CO2, air, volatile solvents.
CP-Sil 5 & 8 CB
Hydrocarbons C3-C10, aromatics, organic solvents.
CP-Sil 19 CB
Hydrocarbons C4-C10, high boiling solvents, BTX.
CP-WAX 52 CB
Polar higher boiling solvents.
PLOT Al2O3/KCl
Light hydrocarbons C1-C5 saturated and un-saturated.
Optional Retention Time Stability (RTS) configuration.
Pora Plot U
Hydrocarbons C1-C6, Freons, Anesthetics, H2S, CO2, SO2,
volatile solvents.
Pora Plot Q
Hydrocarbons C1-C6, Freons, Anesthetics, H2S, CO2, SO2,
volatile solvents.
CP-CO
X
CO, CO2, H2, Air, CH4.
THT column
THT and C3-C6
+
in Natural Gas Matrix.
TBM column
TBM and C3-C6
+
in Natural Gas Matrix.
CP-Poraplot
Specially tested for H
2
S in natural gas (10 to 50 ppm)
MES column
Unique column specially tested for MES in natural gas (1
ppm)
For all compounds not present in this list contact you nearest Varian office
All columns except the HayeSep A (160
C) and MES (110
C) (TCEP) column
can be used up to 180
C, the maximum temperature of the column oven. The
HayeSep A will deteriorate above 160
C. Exceeding this temperature will
cause the column to lose efficiency instantly and the column module will
need replacement.
Summary of Contents for Micro-GC 490-GC
Page 8: ......
Page 72: ...Reference Page 64 User Manual Micro GC Varian Inc...
