Installing Gc Columns; Columns - Agilent Technologies 7200 Operation Manual

2

Installing GC Columns

Columns

Many types of GC columns can be used with the MS, but there are some
restrictions.
During tuning or data acquisition the rate of column flow into the MS should
not exceed the maximum recommended flow. Therefore, there are limits to
column length and flow. Exceeding recommended flow will result in
degradation of mass spectral and sensitivity performance.
Remember that column flows vary greatly with oven temperature. See
Calibrate the Column"
flow in your column. Use the flow calculator in the Agilent Instrument
Utilities software, and
expected column outlet flow pressures, use the values shown in
mode and
Table 2
Feature
High-vacuum pump 1
High-vacuum pump 2
High-vacuum pump 3
Optimal carrier gas flow, mL/min
Reagent gas flow, mL/min
Collision cell gas flow
Maximum recommended gas flow, mL/min
Maximum gas flow, mL/min
Maximum column id
* Total gas flow into the MS = column flow + collision cell gas flow + reagent gas flow (if applicable)
† Expect degradation of spectral performance and sensitivity.
24
Table 6 for CI mode.
Gas flows
†
+ Agilent Quick Swap flow (if applicable)
on page 46 for instructions on how to measure actual
Table 2 to determine an acceptable column flow. For
*
7200 Accurate-Mass QTOF Operation Manual
Table 3
7200 Series
Split flow turbo
Split flow turbo
Turbo
1.0 to 1.5
1 to 2
1.5
2.0
2.4
0.32 mm (30 m length)
"To
for EI