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COLUMN COMPRESSION 
 

Assemble the appropriate SPE column plate and collection plate and position the 
assembly on the System 96
-II Pressure Processor slide tray platform.  Each 
column will be pressurized equally even if columns are omitted.  Refer to 
“Manifold Operation” in the following section for further explanation.  Slide the 
slide tray to the rear of the processor until it reaches the stop locating it under 
the manifold

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The two blue push buttons used to activate the compression mechanism are 
located on opposite sides of the front panel.  Both push buttons must be pressed 
at the exact same time to open or close the compression mechanism.  Activate 
the column compression mechanism by depressing the push buttons until the 
manifold has stopped moving (2 to 3 seconds). If you let go too soon the manifold 
mechanism will automatically open. This is a safety feature designed to keep your 
hands clear of moving parts during the compression and decompression cycle.  
 
Decompression of the rack assembly is activated similarly.  Both push buttons 
must be depressed simultaneously until the manifold has stopped moving.  Slide 
the rack assembly forward until it reaches the stop and proceed with the next 
step of the SPE method.

 

 
The compression speed been pre-set and is not adjustable. The pressure applied 
to the compression system has been pre-set and is not adjustable. 

 

Содержание CEREX SYSTEM 96-II

Страница 1: ...OPERATING INSTRUCTIONS CEREX System 96 II MULTI CHANNEL SPE CEREX 96 II manual rev B ...

Страница 2: ...2 ...

Страница 3: ... atmosphere operation If this is not a consideration the unit can operate using high purity filtered instrument air This instrument is supplied with an installation kit which includes 6 feet of 1 8 i d 1 4 o d polyethylene tubing and connectors to 1 8 NPT or 1 4 NPT Using the tubing and fittings provided connect the unit to a regulated oil free gas source Optimum Source Pressure is 80 psig Min Pre...

Страница 4: ...he re usable CEREX Holder interfaces to several collection plates which are also in the 96 position format Depending upon the volume of the effluent the appropriate collection tray can be selected from the ancillary products available The CEREX Holder is keyed to the collection plates so that sample position is preserved throughout the SPE sequence Both the CEREX Holder and collection plates are k...

Страница 5: ...the exact same time to open or close the compression mechanism Activate the column compression mechanism by depressing the push buttons until the manifold has stopped moving 2 to 3 seconds If you let go too soon the manifold mechanism will automatically open This is a safety feature designed to keep your hands clear of moving parts during the compression and decompression cycle Decompression of th...

Страница 6: ...p ressu re b u ild s en o u g h to o v erco m e th e flu id flo w resistan ce an d th e flu id b eg in s to p ass th ro u g h th e so rb en t b ed In p u t P re s s u re P 3 0 p s i 2 4 p s i 2 4 p s i 2 4 p s i 3 0 p s i 3 0 p s i 3 0 p s i F ig C D ep en d in g o n flo w ch aracteristics o f co lu m n so rb en t b ed p ressu re in co lu m n reserv o ir stab ilizes In h ib itin g th e flo w w ith...

Страница 7: ...labeled MAX FLOW The pressure range is 0 80 psig and is used to maximize flow through the SPE columns for processing viscous or high particulate samples or to dry the columns in situ By switching the SPE FLOW RATE selector to MAX FLOW gas is introduced to the manifold at the pressure set on the MAX FLOW regulator as indicated by the gauge located directly above it By turning the SPE FLOW RATE sele...

Страница 8: ...al is silicone rubber and may be cleaned regularly with methanol WARRANTY The System 96 II Pressure Processor is warranted for 90 days Warranty repairs will be made given that the product has not been abused It is constructed primarily of stainless steel and anodized aluminum Other materials include silicone rubber polyethylene and polypropylene The controls and gauges are not solvent resistant So...

Страница 9: ... assists in removing residual moisture The temperature is preset on the Temperature Control Unit and requires minimal heat up time This in turn not only yields higher analyte recovery it also allows the sorbent bed to be eluted with a more selective solvent like hexane or ethyl acetate The result is an extract that is highly purified and free of interferences 9 ...

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