QuickSplit™
Pre-Column Adjustable Flow Splitters

Pre-column splitting is used for micro, capillary, and nano HPLC applications, where the flow from the pump is split from analytical 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 resistor selected for the flow splitter provides the correct split ratio. Please contact ASI if you need assistance. The charts on page 22 and 23 only estimate the pressure drop across the splitter for post column applications and do not include the HPLC column back pressure. Splitters are shipped complete with the resistor cartridge installed.

 

When ordering a pre-column flow splitter, please provide ASI with the column flow rate and back pressure. If the inlet flow rate or column pressure specification is not provided, ASI will configure pre-column flow splitters assuming a 0.5 mL/min. inlet flow rate and a pressure drop across the column of 1,500 PSI.

Custom Split Ratios

Split ratios and resistor cartridges other than those listed below can be ordered from ASI to custom configure the QuickSplit Adjustable Flow Splitter. Please contact technical support at 800-344-4340 for additional information about custom splitters. We will gladly assist you in determining the best splitter configuration for your application.  These splitters will produce under 3,500 PSI backpressure with water at 0.5 mL/min.

QuickSplit™ Pre-Column Adjustable Flow Splitters

Analytical Splitters
Analytical range, 0.1mL/min. to 1 mL/min.  input flow

Analytical Replacement Resistor Cartridges