Improving Low Volume Non-Contact Dispense Precision

Anyone who analyzes liquid samples in a laboratory setting can tell you that that the operation of the fluid delivery system as it relates to introducing the sample to the measurement instrumentation is critical. When working with low microliter and nanoliter liquid volumes, the fluidic system’s operation becomes even more critical. Portions of liquid around 10µl and lower can remain fixed on the end of a probe instead of in the target vessel. If you’ve used a stepper motor to overcome this, you probably already know that most lack the required resolution to successfully deliver low volume droplets. If you’ve instead used small volume syringe barrels, then you’ve likely encountered the common problems that occur with priming the pump because bubbles tend to adhere to the passageways inside the barrel or liquid head due to the barrel’s size. This white paper explains how Parker Hannifin’s Smart Syringe Pump overcomes these and other issues associated with low volume non-contact liquid dispensing.