Total Nitrogen Analyzer
The FormacsTN Analyzer uses the ND25 Total Nitrogen detector for the analysis of Total Nitrogen (TN). Total Nitrogen can be measured in a range from low ppb levels to high ppm levels with high accuracy in a short analysis time using chemiluminescence detection (CLD).
The sample is injected into the high temperature furnace where it is catalytically combusted at 850°C. Oxidative pyrolysis causes the chemically bound nitrogen to be converted to nitric oxide, which is measured by CLD The FormacsTN analyzer also provides a unique cost-effective and safer alternative for Total Kjeldahl Nitrogen (TKN) analysis, by an integrated NN-reactor for the analysis of NO3 + NO2(NN). The TKN value is determined in two steps, i.e. the analysis of TN and the analysis of NN via chemical reduction, where NO3 and NO2 are reduced to nitric oxide (NO) and detected via CLD detection. The TKN value is obtained automatically by subtraction: TKN = TN – NN. This unique alternative method of TKN analysis results in a very fast analysis time (5 min.), and eliminates the use of hazardous digestion acids.