Multiple-wavelength polarimeter AUTOPOL® IV

digitalautomatic

The Essential Oils Polarimeter AUTOPOL® IV is a microprocessor based automatic polarimeter that is available in one, two and six wavelength versions. The AUTOPOL® IV’s features include: readout in Specific Rotation, Optical Rotation, and concentration, customer defined and labeled programs for push button readout, large LCD display and touchscreen user interface, temperature display and correction, push button wavelength selection, statistics, 3 USB ports, 1-USB 3.0, RS 232 and parallel printer ports. The AUTOPOL® IV Laboratory Polarimeter can readout directly in one of four measurement modes: Optical Rotation, Specific Rotation, Concentration or Specific Rotation Plus. Specific Rotation Plus allows a correction to be applied to a result for loss on drying. Each measurement mode can be activated via touchscreen selection. Sample tubes can be specified at any length (e.g. 50mm, l00mm, 200mm), or entered as a precise dimension (e.g., 199.98mm). Concentration is entered as a percentage. Temperature control of samples is allowed through rubber gasketting in the Autopol door, which permits tubing to be connected from an external temperature controlled Water Bath to the jacket of a jacketed polarimeter sample tube. Instruments of some manufacturers accept only special sample cells, with maximum lengths of 100mm. Autopols accept standard sample cells up to 200mm long. A 200mm sample cell offers twice the sensitivity as the same solution in a 100mm cell. This is especially useful for solutions having small rotations. Also some pharmacopeia monographs require a 200mm (2dm) cell like the USP monograph for Methotrexate.