Choose the needed value(s) in a particular product page. Standard values are 250 and 280nm (the least expensive). However, other values in range 235nm to 1000nm are possible.

Please note: because the flow cell is not thermostated (only the internal optics is) the RI provided is not as sensitive as in dedicated HPLC RI detectors. Usually, one can observe 100mg/L (and up) of polyethylene glycol in water. Also, this RI is useful for sucrose gradient separations.
Organic chemists: if you are using TMS or TBDMS protective groups you could monitor the elution of the excess of your silylating reagents, usually hydrolyzed to R₃Si-O-SiR₃, as a clear RI peak on these detectors.

Low hold up volume valves are made entirely from PTFE and are installed underneath of the detectors. Detector can be programmed by an user to open a valve when a set of conditions is met (example: change the flow from waste stream to the second receptacle when optical density at 280nm exceeded say 0.5 OD and 30min had already passed). More about valves

Any detector can accept "fraction changed" electrical pulse (or an intermittent contact closure) from the fraction collector. The moment of the fraction change is shown on the detector screen as a numbered tick-mark and is also indicated in the data table exported by the detector.
Note: if the manufacturer of a fraction collector does not publish the description of their electrical interface, we might be unable to provide the fraction collector cord. Please check with us if you are planning to buy a third party fraction collector. ISCO Foxy R1/R2 is known to be suitable.

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Starts at

New alternative to fraction collectors

Automatically collect fractions of any volume!

Collection based on signal thresholds and/or time.

Press on each row for full details

Starts at

New alternative to fraction collectors

Automatically collect fractions of any volume!

Collection based on signal thresholds and/or time.