Polarimeter Buyer’s Guide

Understanding Polarimeters Selecting the Right Polarimeter Illumination Method 3 Polarimeters use different lamp sources for transmitting Measurement Range and Accuracy Polarimeters are precise optical instruments that measure purity polarized light. Some models employ halogen lamps which 1 Purchasing a new polarimeter is a major decision. Choose the and concentration through the optical activity exhibited in have a short life span, generate heat, and require servicing model that offers the best measurement range and accuracy inorganic and organic compounds. Compounds are considered while others have LED illumination. LED illumination does not to meet present and future application needs. Be aware to be optically active if linearly polarized light is rotated when require maintenance or generate heat and is environmentally that many polarimeters offer a very limited measurement passing through them. This optical rotation in general means friendly and energy efficient. All Reichert polarimeters feature range that may limit readings. Also, most importantly, there that the polarization of the direction of light is rotated at LED illumination. a specific angle proportionate to the concentration of the are many polarimeters on the market that have a non-linear accuracy specification. In other words, within the limited optically active substance being tested. Maintenance measurement range of these instruments, the accuracy Optical rotation is measured in degrees of angle. At point 4 Operating costs are important to consider when evaluating specification can degrade to different levels across that range. zero, a polarizer and analyzer are set in an angle of 90 degrees instruments. Many companies offer expensive service plans. toward each other, which means that no light reaches the Reichert builds robust instruments that provide reliable detector (0% transmission). When an optically active substance Be sure the polarimeter has an accurate linear response over the entire measurement range. service for decades without requiring repair contracts. Backed is then placed in the measuring tube, the transmission will rise by longstanding knowledge in the analytical instruments as a result of the plane polarization. To measure the angle, the industry, Reichert polarimeters are manufactured for reliability analyzer is rotated up to the point where the transmission of the Competitor Reichert and longevity. detector is again at minimum. Polarimetry is a mature technique and today’s automatic Sample Tube Lengths, Material Composition instrumentation provides features and benefits that purely 5 Polarimetric applications utilize different sample tube lengths. manual-optical systems do not. Busy labs processing multiple Longer tube lengths provide greater accuracy. But sometimes samples have the option of automated data capture, variable shorter tube lengths are needed if samples are limited in wavelength and temperature with circular polarimeters having Accuracy range quantity or very expensive. Tube lengths range from 10 to Accuracy range 0 0 0.005 accuracy and 0.001 resolution. These instruments are 0 0 +360 to-360 +90 to-90 200mm depending on the application. Material composition suited for quality control, process control, and research for of tubes is also important. Many sample types work well demanding applications in many industries including beverage, with a stainless steel tube. Samples that are corrosive are cosmetic, chemical, food, essential oils and pharmaceutical. better suited for glass. Reichert provides a wide range of tube lengths and materials to meet all needs. Which Polarimeter is Right for Your Lab? Competitor’s polarimeters Reichert polarimeters are full With this overview, Reichert makes it easy to determine accuracy can degrade over a range instruments, with an Software limited measurement range. accurate linear response over 6 which polarimeter suits your needs. Identify answers to the the entire 3600 degree range. When selecting a polarimeter, ensure the software features steps below to determine the specific requirements of your meet your needs. Reichert offers an intuitive, simple interface applications, in your industry, and with your budget. And then, for quickly and accurately attaining measurements. The simply pick the appropriate Reichert polarimeter from the chart 2 Measurement Response Time measurement screens are simplified and Reichert software on the back. In today’s labs, speed is critical - with fewer resources processing provides custom scales and methods, and is compliant with more samples, technicians wait time must be minimized. 21CFR Part 11 compliance. Reichert offers the fastest measurements for a given accuracy. Reichert Polarimeters

Polar1 Polar2 Polar3

Technical Specifications

Polar1 - #10836-576 Polar2 - #10836-572 Polar3 - 10836-568 Measurement Scales Optical Rotation, Specific Rotation,0 Z International Sugar Scale, % Concentration User Definable Scales 7 1,000 1,000 Measuring Range ± 3600 / ± 2590Z ±900 / ±2590Z ± 3600 / ± 2590Z Resolution 0.010 / 0.020Z 0.0010 / 0.010Z 0.0010 / 0.010Z Accuracy ± 0.010 / ± 0.030Z ± 0.0050 / ± 0.0150Z Reproducibility ± 0.010 / ± 0.030Z ± 0.0050 / ± 0.0150Z Sensitivity Up to OD 2 Up to OD 5 Wavelengths 589nm standard 589nm standard, others on request Response Time 6 to 8 sec. over the entire measuring range ≤ 4 sec. over entire measuring range Tube lengths 10 to 200 mm length Up to 100mm length 10 to 200 mm length Tube Materials Glass, acid-proof stainless steel, stainless steel with temperature sensor

Temperature Interface Temperature measurement NTC Sensor Accuracy ± 0.030C ±0.10C ± 0.030C Temperature range 00C to 990C 100C to 400C 00C to 990C For more information Resolution 0.010C contact your VWR representative or visit Other Information VWR.com® Light Source LED Display LCD display, monochromatic 4.3" color touchscreen 7" color touchscreen Universal Display (optional) Universal Display (optional) Interfaces RS232 (2x), Parallel (1x) RS232, USB, Ethernet RS232 (1x), USB A (4x), USB B (1x), Ethernet Dimensions 25.5 x 12.4 x 6.2 inches 17 x 12 x 6.3 inches 28.75 x 14.5 x 6.3 inches (650 x 315 x 160mm) (430 x 300 x 160mm) (730 x 370 x 160 mm) Weight 26lbs. (11.8kg) 22lbs. (9.97kg) 40 lbs. (18.3kg)