Thermo Scientific Dionex ICS-5000, Руководство оператора

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2 • TC Description
Doc. 065342-06 12/11
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or autosampler line (if installed), through the valve, and into the sample
loop. Excess sample flows out to waste.
•
In the Inject position, sample is swept to the column for analysis. Eluent
flows from the pump, through the sample loop, and on to the column,
carrying the contents of the sample loop with it.
Section 5.3.1 describes
how to inject samples.
The 10-port injection valve has two operating positions: 10_1 and 1_2. Liquid
flows through the path between either ports 10 and 1 or ports 1 and 2,
depending on the valve position.
Figure 2-65 shows example flow schematics for the 10-port valve when it is
connected for an application that uses a concentrator column.
•
In the 10_1 position, sample flows from the syringe or autosampler line,
through the valve, and into the sample loop. Excess sample flows out to
waste. Eluent flows from the eluent pump, through the valve, through the
concentrator column, and to the separator column. If sample was
previously loaded onto the concentrator column, it is swept to the
separator column for analysis.
Figure 2-65. TC Injection Valve Flow Schematics (10-Port Valve)
Example Connections: Large Loop to Concentrator
1
3
5
7
9
10_1 POSITION
(Loop Loading)
To Waste
Eluent
Pump In
To Column
Sample In
To Waste
Concentrator
Large
Loop
Carrier Pump In
1_2 POSITION
(Concentrator Loading)
To Waste
Eluent
Pump In
To Column
Sample In
To Waste
Concentrator
Carrier Pump In
= Sample
= Carrier
= Eluent
Large
Loop
2
4
6
8
10
1
3
5
7
9
2
4
6
8
10