Inlet filters
Inlet filters prevents dust and other foreign particulate matters from entering the flow path of your liquid chromatography and (U)HPLC instrument. Such particles would otherwise eventually reach the column inlet, increase the system backpressure and might then also introduce radial flow heterogeneity which could affect peak shape. Naturally, other types of high-precision liquid handling systems can also benefit from preventing particles to reach and accumulate internally at sensitive locations.
The traditional inlet filter designs will always leave a certain amount of liquid that cannot be aspirated from the bottle. Conversely, the Bottom-of-the-Bottle™ design will make it possible to use your solvent very efficiently down to the last few millimetres from the bottom of your bottle. Regardless of the design, replacement of inlet filters should be performed regularly to prevent problems associated with filter clogging.
Biotech Fluidics offers a range of competently designed inlet filters in different materials and porosities for a variety of solvents and requirements. All of these have a defined homogenous pore size to effectively block particles above a certain size, while letting the aspirated liquid through without significant pressure drop.