Probes

Gilson offers many different types of probes, probe tips and coatings to meet any and all application needs providing solutions for all liquid handling requirements. (Note: Teflon® coated probes are not compatible with liquid level sensing.)

For more information on selecting the appropriate probe for your Gilson instrument, please refer to the Gilson Probe Guide or call 608-836-1551.

Tip Design

Description

Features

Flat

The tip is cut perpendicular to the length of the probe.

Aspirates the last drop of liquid
Does not pierce septum
No injection

Constricted

The tip of the probe has a smaller outer diameter than the rest of the shaft. Constricted-tip probes accommodate unique tip designs optimizing every application.

Compatible with injection ports

Beveled

The tip is cut at an angle, leaving a bevel.

Sharp tip enables septum-piercing
Compatible with injection ports

Vented

Two styles:

A shallow grove cut in the probe shaft, above the tip (shown).
Two probes are assembled concentrically, creating two separate channels, the inner channel for liquid and the outer channel for gas.

Septum-piercing
Vent allows pressures inside and outside a sealed vessel to equilibrate as liquid is dispensed or aspirated

Side-entry

The liquid flow path opens on the side of the probe, not at the tip.

Recommended for thick septa
Prevents coring of septa
Compatible with injection ports
Not recommended with limited volume

Deflected

Based on the beveled tip design, the probe tips is curved and very sharp.

Sharp-tip enables septum-piercing
Tip pushes septa out of the way as it pierces to prevent coring

Conical

Designed for PEEK injection ports.

Capable of piercing thin septa
Aspirates the last drop of liquid