4-4
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6.
Start pump (screen step 6) – Choose Press to Start. The Pump draws eluant from the
reservoir and pump it through the system.
7.
Monitor the CHDF 2000 waste tubing until air bubbles disappear from the eluant, or the
pump stops.
8.
Close valve (screen step 4) – With the syringe still attached to the priming valve, close the
valve by turning the top of the valve to the right.
9.
Remove syringe (screen step 5) – Carefully remove the syringe from the pump priming
valve.
10.
Choose Pump ON-Press to Stop to shut off the pump. Or, the pump shuts off
automatically according to the time set for the Priming Pump Time system parameter.
(Refer to Chapter 3 for more information).
4.2 Analyzing Samples
This section includes procedures for the following tasks:
•
Performing standard sample analysis
•
Using standby mode when you are not analyzing a sample
4.2.1 Performing Standard Manual Sample Analysis
Sample can be injected manually, as described here, or using an autosampler. To use an
autosampler, refer to the CHDF 2000 software manual.
To perform standard manual sample analysis:
1. From the Home screen, choose Analyze/Monitor, or from the Prepare System screen,
choose Analyze/Monitor.
Note:
Be sure there is an ample amount of fresh GR-500 eluant in the eluant reservoir.
The Analyze/Monitor Samples screen appears (Figure 4.4).
Figure 4.4 Analyze/Monitor samples Screen
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