Leco TruMac N Nitrogen Determinator

The TruMac series determines nitrogen/protein, carbon/nitrogen or carbon/nitrogen/sulfur in a multitude of

organic matrices from foods and feeds to soils and fertilizers. The system utilizes a combustion technique that

provides a result for all of the elements within 5 minutes.

A pre-weighed macro sample is placed into a large ceramic boat and loaded into the purge chamber located

in the front of the horizontal ceramic high temperature furnace. After the entrained atmospheric gas is purged

from the sample, the ceramic boat is introduced into the furnace regulated at a temperature of

1100 to 1450 C. Complete oxidation of the macro sample is ensured by a pure oxygen environment within o

the furnace, with additional oxygen being directed onto the sample via a ceramic lance. The ceramic boat and

all ash from the sample are removed from the furnace at the end of combustion, leaving the furnace free of

ash buildup. When operating in N or CN modes, the combustion gases are then swept from the furnace into a

thermo electric cooler where the moisture is efficiently removed without the use of chemical anhydrone.

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