A powerful Dumas Protein/Nitrogen Analyzer, able to perform precise nitrogen analysis and protein determination in a flash. It is the best solution for high productivity and offers unique benefits, being totally unsupervised. NDA 701 is the innovative VELP Scientifica solution for nitrogen/protein determination, using the Dumas method (also known as combustion method) and offering on both solid and liquid samples. In Dumas combustion method the the encapsulated sample is burnt at a high temperature, in the presence of catalysts in a controlled oxygen atmosphere. The combustion gas, CO2 , H2O, NOx , passes through the reduction furnace where NOx are reduced to N2 . The H2O and CO2 are separated and the elemental nitrogen is measured with a Thermal Conductivity Detector (TCD). The whole procedure takes from 3 to 4 minutes.