A method for determining total nitrogen in Kjeldahl digestion solution using a centrifugal analyser

A method for determining total nitrogen in Kjeldahl digestion solution using a centrifugal analyser

Correspondence: A method for determining total nitrogen...

The digestion method using a small proportion of a strong oxidizing agent perchloric acid seems to have been taken from a ’continuous flow method’, which was not designed for discrete digestion and analysis. There is considerable evidence that satisfactory digestion ofeven tMrly refractory substances can be achieved without the use of perchloric acid (1) and it is now usually recommended that p...

Evaluation of Kjeldahl Digestion Method

The evaluation of the Kjeldahl digestion method was investigated by comparing measured values of total nitrogen, phosphorus and potassium using three salt and catalyst mixture in Standard Kjeldahl digestion method and Salicylic acid Modification method with certified values of plant material as well as comparison was made for determination of total nitrogen from steam distillation method verses...

A digestion rack for Kjeldahl flasks.

Determination of dissolved organic nitrogen in seawater using Kjeldahl digestion after inorganic nitrogen removal

RÉSUMÉ M. D. DOVAL *,Fernando FRAGA and Fiz F. PEREZ Instituto de Investigaciones Marinas de Vigo (CSIC), Eduardo Cabello, 6, E-36208 Vigo, Spain. * Corresponding author. E-mail:[email protected] Received 15/02/96, in revised form 04/12/96, accepted 16/01/97. An update of the Kjeldahl method is presented for the direct determination of dissolved organic nitrogen (DON) in seawater. Dissolved in...