Inlet Systems
Packed column inlet
Assuming the system to be leak•free(and if total flow is < 200 ml/min), after setting the desired column flow rate, total flow through the system should be noted via the EFS.
The original column flow rate is reestablished simply by adjusting the mass flow controller so the original total system flow rate value is displayed again.
The septum•purgedpacked column inlet may be used with HP Series 530 ¿ capillary columns, metal packed or glass packed columns. Additionally, on•columninjection is possible with 1/4•inchglass packed columns.
The septum•purgedinlet provides superior reproducibility and quantitative accuracy at high inlet temperatures (250 to 400^C).
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| External | Internal |
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| Septum Purge | ||||
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| Packed Column | ||||||
Trap(s) |
| Plumbing | Plumbing | Pressure |
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| Inlet | |||||||||
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| Gauge |
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| To | ||
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Carrier |
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| Mass |
| Electronic | ||||||||||||||
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| Detector | ||||||||||||||||
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| Flow |
| Flow Sensor | |||||||||||||||
Gas |
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| Controller |
| (optional) |
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| Forward |
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| Pressure Regulator |
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| Septum |
| Out |
| In | Column | ||||||||||||||
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| Purge | Fixed |
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| Vent |
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| Restrictor |
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Flow Diagram,
103