NEW TEST FACILITY
Ion Chromatography System (DIONEX 500)
The High Energy Materials Research Laboratory (HEMRL) , Pune, has installed an ion chromatography system (DIONEX 500) for chemical analysis of anions, cations and transition metal elements. This technique separates out the ions or charged molecules using ion exchange columns and ionic elements and detects the separated ions by a suitable detector. The DIONEX 500 is an integrated, high speed liquid chromatography system that simplifies system configuration for any ion chromatography. Pumps, detectors and chromato, graphic modules are engineered to function as a fully integrated system. The technique is applicable for quantitative estimation of anions, cations and transition metals from ingredients used in different propellant compositions.
The guard columns are used for removal of anion, cation and transition metal contaminants from sample matrices and in the neutralisation of highly acidic samples. Two types of detectors are used for the chemical analysis. The electrochemical detector is used for detection of anions and cations. It combines conductivity, integrated and DC amperometry, cyclic voltametry, pH and temperature measurements. AD20,UV NIS absorbance detector features programmable wavelength selection and automatic calibration. This detector is used for detection of transition metals.