ASI QuickSplit
TM
Adjustable Flow Splitters
E72
Scientific Instrument Services, Inc.
TM
Phone: 908-788-5550
www.sisweb.com/catalog/08/E72
Adjustable Flow Splitters - Pre-Column Applications
P
re-column splitting is used for micro, capillary, and nano HPLC applications, where the flow from the pump is split from analyti-
cal flow rates down to microliter or nanoliter flows. It is important to note that even though the split ratio created by the splitter
valve will remain constant, the split ratio will change when a HPLC column is installed. This is due to the added resistance on
the low flow rate channel from the HPLC column. This added resistance must be factored in to make sure the fluid resistors selected for
the flow splitter provide the correct split ratio.
When ordering a pre-column flow splitter please provide SIS with the column flow rate and back pressure. If the inlet flow rate or col-
umn pressure specification is not provided, SIS will configure pre-column flow splitters assuming a 0.5 mL/min. splitter inlet flow rate and
a pressure drop across the column of 1500 psi.
Analytical Splitters
Analytical range, 0.25 mL/min. to 1 mL/min. input flow
These splitters will produce under 3,500 psi backpressure with water at 0.5 mL/min..
Analytical Replacement Resistor Cartridges
Adjustable Flow Splitter Accessories
Replacement Inlet Filters
Capillary Resistor
Flow Measurement Kits
Part No.
Description
Split Ratio
Analytical Adjustable Flow Splitter, Pre-Column
50:1 to 1,000:1
Analytical Adjustable Flow Splitter, Pre-Column
15:1 to 250:1
Analytical Adjustable Flow Splitter, Pre-Column
5:1 to 100:1
Analytical Adjustable Flow Splitter, Pre-Column
1:1 to 20:1
Analytical Adjustable Flow Splitter, Pre-Column
Custom*
Part No.
Description
Interface
Flow Rate Range 50 nL/min. to 5 無/min.
interfaces to 360 痠 OD fused silica tubing
Flow Rate Range 5 無/min. to 25 無/min.
interfaces to 1/16" OD PEEK tubing
Flow Rate Range 10 無/min. to 100 無/min.
interfaces to 1/16" OD PEEK tubing
Flow Rate Range 25 無/min. to 500 無/min.
interfaces to 1/16" OD PEEK tubing
Part No.
Description
Flow Splitter
Inlet Filter, 2 micron .063" dia.
Adjustable FS - Post/Pre-column Analytical Range
5/Pack, 1 無 Volume
Inlet Filter, 10 micron .125" dia.
Adjustable FS - Semi-Prep Range
5/pack, 4 無 Volume
& Prep Range for 600-PO30, 40
Straight Thru Hole, No Filter
Adjustable FS - Prep Range for 600-PO60
5/Pack, 0.1 無 Volume
Part No.
Description
Flow Splitter
Capillary Resistor
Custom
Part No.
Description
Split Ratio
Analytical Adjustable Flow Splitter Resistor Cartridge, Pre-Column 50:1 to 1,000:1
Analytical Adjustable Flow Splitter Resistor Cartridge, Pre-Column
15:1 to 250:1
Analytical Adjustable Flow Splitter Resistor Cartridge, Pre-Column
5:1 to 100:1
Analytical Adjustable Flow Splitter Resistor Cartridge, Pre-Column
1:1 to 20:1
Analytical Adjustable Flow Splitter Resistor Cartridge, Pre-Column
Custom*
* Must specify custom split ratio when ordering
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