Method and apparatus for the determination of total nitrogen

Details Method and apparatus for the determination of total nitrogen Method and apparatus for the determination of total nitrogen

G - Physics

01

N

73/95

G01N 31/12 (2006.01)

Patent

CA 2034066

ABSTRACT OF THE DISCLOSURE METHOD AND APPARATUS FOR THE DETERMINATION OF TOTAL NITROGEN A method of determining nitrogen in various nitrogenous materials, wherein said materials are com- busted by being brought into contact with a solid metallic catalytic mass, in the presence of an oxygen- ated gas, so as to convert the nitrogen into NO. This is then determined, preferably by chemiluminescence or by optical interferometry. An apparatus comprising an oven (1,2,2') charged with catalytic mass (4), which can be a wire acting as a heating element, and provided with an oxygen inlet (6). The catalytic mass is a non- oxidizable ferrous alloy or a metal of the Pt group.

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