1 ,Measurement Range and Accuracy Purchasing a new polarimeter is a major decision. Choose the model that offers the best measurement range and accuracy to meet present and future application needs. Be aware that many polarimeters offer a very limited measurement range that may limit readings. Also, most importantly, there are many polarimeters on the market that have a non-linear accuracy specification. In other words, within the limited measurement range of these instruments, the accuracy specification can degrade to different levels across that range.
2 Measurement Response Time In today’s labs, speed is critical - with fewer resources processing more samples, technicians wait time must be minimized. Reichert offers the fastest measurements for a given accuracy.
3 Illumination Method Polarimeters use different lamp sources for transmitting polarized light. Some models employ halogen lamps which have a short life span, generate heat, and require servicing while others have LED illumination. LED illumination does not require maintenance or generate heat and is environmentally friendly and energy efficient. All Reichert polarimeters feature LED illumination.
5 Sample Tube Lengths, Material Composition Polarimetric applications utilize different sample tube lengths. Longer tube lengths provide greater accuracy. But sometimes shorter tube lengths are needed if samples are limited in quantity or very expensive. Tube lengths range from 10 to 200mm depending on the application. Material composition of tubes is also important. Many sample types work well with a stainless steel tube. Samples that are corrosive are better suited for glass. Reichert provides a wide range of tube lengths and materials to meet all needs.
6 Software When selecting a polarimeter, ensure the software features meet your needs. Reichert offers an intuitive, simple interface for quickly and accurately attaining measurements. The measurement screens are simplified and Reichert software provides custom scales and methods, and is compliant with 21CFR Part 11 compliance.