4
Installing 7890 GC Columns
To Condition a Capillary Column
5977B Series MSD Operating Manual
83
To Condition a Capillary Column
Materials needed
•
Carrier gas, (99.9995% pure or better)
•
Wrench, open-end, 1/4-inch and 5/16-inch (8710-0510)
Procedure
1
Install the column in the GC inlet. (See
“To Install a Capillary Column in a
2
Set a minimum velocity of 30 cm/s, or as recommended by the column
manufacturer. Allow the carrier gas to flow through the column at room
temperature for 15 to 30 minutes to remove air.
3
Program the oven from room temperature to the maximum temperature
limit for the column.
4
Increase the temperature at a rate of 10 to 15 °C/min.
5
Hold at the maximum temperature for 30 minutes.
6
Set the GC oven temperature to 30 °C, and wait for the GC to become ready.
7
Attach the column to the GC/MSD interface. (See
Column in the GC/MSD Interface Using the Self-Tightening Column Nut”
page 84.)
WARNING
Do not condition your capillary column with hydrogen. Hydrogen accumulation
in the GC oven can result in an explosion. If you plan to use hydrogen as your
carrier gas, first condition the column with ultrapure (99.999% or better) inert
gas such as helium, nitrogen, or argon.
WARNING
The GC operates under high temperatures. Do not touch any GC parts unless
you are certain they are cool.
CAUTION
Never exceed the maximum column temperature, either in the GC/MSD
interface, the GC oven, or the inlet.
Summary of Contents for 5977B CI MSD
Page 1: ...Agilent 5977B Series MSD Operating Manual ...
Page 12: ...12 5977B Series MSD Operating Manual ...
Page 34: ...1 Introduction To Replace the Primary Fuses 34 5977B Series MSD Operating Manual ...
Page 142: ...5 Operating in EI Mode To Pumpdown the MSD 142 5977B Series MSD Operating Manual ...
Page 252: ...8 CI Maintenance To Install the CI Source 252 5977B Series MSD Operating Manual ...
Page 253: ......