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| Manufacturer |
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| PAL HPLC Autosampler Option |
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| Switching Valves |
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Pre-column sample cleanup, desalting or pre-column SPE
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Alternate column regeneration
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4- 6- 8- or 10- port valves individually arrange in a vertical stack
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| PAL Switching Valve Option consist of 2 or 3 individually controlled multiposition valve drives arranged in a vertical stack. The top valve acts usually as injection valve, while the remaining one or two valves are used as switching valves. Typical applications are pre-column SPE, pre-column cleanup, sample desalting, etc. For increased sample throughput the accessory can be used for time staggered “hear-cuts” of two independent gradient systems. Important chromatogram areas only reach the detector just in time using a selector valve, while the front-end and end-cut goes to waste. The compact valve module arrangement results in a space saving setup with very short connection lines. The modules are compatible either with 4- 6- 8-or 10-port valves and can be mixed on the same valve drive module. |
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Valve 1
Injection valve
Early valve switch for washing and prep ahead next sample.
Valve 2
Pre-column or SPE Trap cartridge
Front cut to eliminate e.g. proteins or other high molecular compounds.
Valve 3
Analytical column or 2nd pre-column
Early backflush of late eluting compounds
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| Detail |
| Part no.: |
PAL 1VlvDrv |
| Consisting of |
1 pc Multiposition valve drive with bracket
1 pc Connection cable
(requires VICI Valco LC valves, type DCxWK-K or type Cheminert) |
| Part no.: |
PAL 2VlvDrv
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| Consisting of |
2 pcs Multiposition valve drives with bracket
1 set Connection cable
(requires VICI Valco LC valves, type DCxWK-K or type Cheminert) |
| Part no.: |
PAL 3VlvDrv |
| Consisting of |
3pcs Multiposition valve drive with bracket
1 set connection cable
(requires VICI Valco LC valves, type DCxWK-K or type Cheminert)
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| Specification |
| System requirements: |
HTC / HTS / HTX or HTC-xt / HTS-xt HTX-xt respectively equipped with PAL DLW / PAL Dilutor and / or Fast Wash Station |
| Software requirements: |
Cycle Composer control software Vers. 1.4. or higher
PAL Firmware 2.4 or higher
Appropriate third party instrument driver
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| Valve Drive specifications: |
Switching speed: 211ms
Max. Torque: 1.6Nm
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| Used for valve type: |
VICI Valco W-type and Cheminert
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| More information from CTC : http://www.palsystem.com/index.php?id=214 |
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| For more information contact : info@scispec.co.th |
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