PE 2400 Series II CHN Analyzer

The PE 2400 Series II CHNS/O Analyzer (Perkin Elmer, USA) serves for simultaneous determination of C, H, and N in organic compounds. In the CHN operating mode the instrument employs a classical combustion principle to convert the sample elements to simple gases (CO₂, H₂O and N₂). The PE 2400 analyzer performs automatically combustion and reduction, homogenization of product gases, separation and detection. A microbalance MX5 (Mettler Toledo) is used for precise weighing of samples. The accuracy of CHN determination is better than 0.30% abs. The instrument was installed in 1999.

AUTOPOL IV

The AUTOPOL IV (Rudolph Research Analytical, USA) is a microprocessor based automatic polarimeter for measurement of optical rotation (±89° Arc), specific rotation ±999.99° Arc) and concentration (0 - 99.9%). The Autopol IV comprises Glan Thomson calcite quartz prism polarizer. The highest resolution is 0.001° Arc for optical rotation, 0.001° below 90° Arc and 0.01° between 100 to 999.99° Arc for specific rotation and 0.001% for concentration. However, usually the resulting values of specific rotation are given with one decimal place. The polarimeter accepts sample cells up to 200 mm. The instrument was installed in 2001.