The Univentor 810 and 820 Microsamplers are fraction collectors designed to collect liquid samples, as small as 1 ul using the 820 Microsampler and 10 μl using the 810 Microsampler, and to keep them cool.

The Univentor 810 Microsampler operates with 10 plastic vials of 1.5 ml volume (Eppendorf type) in Single Mode.

The Univentor 820 Microsampler operates with 20 glass or plastic vials of 300 μl volume. It can collect 20 samples from one source (Single Mode), for example, a microdialysis probe or 2 x 10 samples from two sources (Dual Mode) at the same time. Either tubing or the stainless steel cannulas supplied with the Microsamplers can be used as collection cannulas. Septas may be attached when using the steel cannulas.

The Univentor Microsamplers are very user-friendly, having a self-explanatory control panel on which collection time (up to 99 minutes) can be set, and refrigeration (+8 °C) can be witched on or off.

Both Univentor Microsamplers can operate as stand-alone instruments. An external TTL signal may be used to control the actions of the collectors. The Microsamplers also operate in conjunction with the Univentor 802/864 Syringe Pump, ensuring precise volumes. By combining a Microsampler with either the 802 Syringe Pump or the 864 Syringe Pump the system can be computer-controlled via RS-232. This enables the user to customise the collection process.

The Microsamplers are small, compact and almost silent.