Total Nitrogen determination in automotive fuels according to DIN 51444

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DIN 51444 covers the determination of total Nitrogen in concentrations ranging from about 0,3 to 300 mg/kg in petroleum products having a boiling point range of 50˚C to 400˚C and viscosities between 0,2 and 10 mm²/s at ambient temperature. 

The DIN 51444 standard is the preferred method in many countries to detect and quantify total bounded nitrogen containing compounds in the various type of automotive fuels such as blended gasolines, diesel and synthetic oils. 

Nitrogen compounds can have detrimental effects on many environmental and industrial processes and are undesirable in finished products. This support the need and importance to monitor trace level nitrogen concentration of various type of automotive fuels and related products. This Application Note shows the total bounded Nitrogen analysis performance of a set of automotive fuel samples. The system design and methodology of the TN 7000 Total Nitrogen analyzer is thoroughly tested for response linearity, level of detection (LOD) and level of quantification (LOQ), precision and repeatability, to validate the performance according to DIN 51444 method.

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