3 • SP Sample Preparer Description
Doc. 065250-06 03/2020
33
3.6.2
SP2 for Dilution or Direct Injection
The SP2 configuration is intended for:
•
Applications in which samples must be diluted before
chromatographic analysis
•
Applications in which samples are loaded directly into the sample
loop before chromatographic analysis
A system configured for dilution is often used when assaying process
samples for major constituents. Dilution factors up to 1/25,000 can be
achieved.
Figure 3-13. SP1 Component Layout: Horizontal Orientation
Loading
Pump
Dilution
Pump
Dilution
Vessel
Gas Pressure
Regulator Knob
DV
SV6
SM
SV4
ST
SV1
plug
SS
SV5
DI
SV2
CS
SV3
(plug)
(plug)
(p
lug
)
1
2
5
7
9
4
6
8
10
3
Metering
Valve
s
ta
n
d
ar
d in
Check Valve
Check
Valve
plug
ga
s
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