Typical Operating Conditions - Agilent Technologies 8860 User Manual

5 Operation

Typical operating conditions

8 Disconnect the sample source.
9 Before switching to another sample, or putting the gasifier into idle, connect an inert gas such
as nitrogen (N
the gasifier. If a filter or quick connector attached, purge the system at least 5 minutes.
Typical operating conditions
When using the gasifier, be sure to maintain sufficient temperatures to prevent sample
re-condensation in the gas lines.
An example method is provided in
Table 4
Parameter
Gasifier
Temperature
Transfer line heater
Gas Sampling Valve
Loop volume
Valve box temperature
Run time events
Column
Column
Column flow
Column mode
Split/splitless inlet
Carrier gas
Liner
Temperature
Mode
Split ratio
Septum purge
Gas saver
Oven
Oven equilibration
Initial temp
Initial time
Rate 1
Final temp
Final time
Agilent 8860, 8890, and 990 Micro GC Gasifier User Manual
) to purge the gasifier for 2 to 3 minutes to remove any residual sample from
2
Table
Typical checkout conditions for C1~C6 LPG hydrocarbons
4.
Value
150 °C
On
0.25~1 mL
150 °C
At 0.01 min.: Valve ON
At 0.5 min.: Valve OFF
19093P-M23 (HP-AL/M: 30m×0.53mm ID×15µm film)
5 mL/min
Constant flow
Helium
5190-2295
200 °C
Split
40:1
3 mL/min
Off
0.5 min
60 °C
0
15 °C/min
180 °C
2 min
41