TKN determination in water and wastewater
SpeedDigester K-439, Kjel Line and MultiDist: Steam distillation and Potentiometric determination of Total Kjeldahl Nitrogen (TKN) according to the kjeldahl method in water and wastewater along with determination of Limit of Detection (LOD) and Limit of Quantification (LOQ).
An easy and reliable method for the determination of Total Kjeldahl Nitrogen (TKN) in water and wastewater, according to ISO 5663, DIN EN 25 663 and the methods listed in 40 CFR part 136.3, is introduced below. In this study, the limit of detection (LOD) and limit of quantification (LOQ) which is a measure of sentisivity of a method, were determined. To test the performance, nitrogen recovery in different concentrations of urea solutions was tested. The samples are digested using the SpeedDigester K-439 using Kjeldahl Tablets Titanium. A steam distillation protocol followed bya suitable boric acid titration is performed with the MultiKjel together with the Metrohm Eco Titrator. Coupling the new MultiKjel system and the Eco Titrator results in excellent performance with ease and speed of the analysis.
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BUCHI’s latest steam distillation units are extremely accurate, ensure the sustainable use of resources and offer maximal safety during operation. The instruments have been designed to fit your individual needs and to enable the highest performance in the most convenient way.
The Dist Line is extremely versatile and is designed for a broad range of analytes while offering the highest operational safety. The instruments perfectly fit your individual needs and enable the highest performance in the most flexible way.
With four steps to occupational safety, Scrubber K-415 provides you with maximal protection. The unit neutralizes poisonous fumes and reaction gases and minimizes use of cooling water to safeguard both you and the environment.
SpeedDigester K-425 / K-436 / K-439
Set new standards for digestion speed, flexible use and result reproducibility with the IR SpeedDigester. Achieve higher sample throughput for nitrogen determination by Kjeldahl digestion and multiply functionality with this entry level IR digester.