POLARmonitor

Process Polarimeter

for Monitoring Chiral Compounds in Preparative LC and SFC Applications

The POLARmonitor is a high resolution, sensitive polarimetric detector for online monitoring the Optical Rotation of chiral compounds. State-of-the-art microprocessor technology and “no moving parts” mechanical design have resulted in a detector yielding excellent baseline stability and high reproducibility with maximum protection in harsh industrial environment.

Measuring cells, made of stainless steel or other biocompatible materials, are available for a wide span of flows rates and pressure, enabling any applications in LC, SFC and biotechnology process.

Chromatogram e:e

Chromatogram Hydrocarbonate

Technical Data

Principle	Faraday Modulation / Compensation
Optical system	Monochromatic, High power LED 589 nm
Measuring range	minimum ± 3° opt. rotation maximum ± 90° opt. rotation (depending on cell length)
Resolution	0.00001° (100 mm cell)
Noise Drift Accurary	0.00002° opt. rotation 0.00005° /h opt. rotation 0.05% (full scale)
Detection limit	5 mg/l [alfa ] = 90° ( direct injection )
Absorbtion	Sample max. 99.5 %
Temperature	Ambient 5 – 45° C Sample 5 – 85° C
Humidity	Non condensing

Cell length	3 – 100 mm
Flow rate	min. 2 ml/minute max. 80 l/minute
Pressure	30 bar 280 bar (SFC) (depending on cell)
Tubings	1/16” 1/8” DN15 DN 25
Read out (display)	Optical Rotation Specific Rotation Concentration
Signal out	1000 mV , ± 1000 mV 4 – 20 mA , 4 –12 -20 mA RS 232c , USB (option)
Cable length	max. 1200 meter to Controller
Protection Grade	IP 65 ( Optical unit ) IP 62 ( Controller )
Power	100 - 250 VAC / 50 VA
Size & weight	600 x 200 x 120 mm, 24 kg