General description – Labconco Hooded Combination (Macro) Kjeldahl Systems 21179 Series User Manual
Page 5
Chapter 1: Introduction
Product Service 1-800-522-7658
2
General Description
Labconco’s Hooded Combination (Macro) Kjeldahl Nitrogen System is
designed to facilitate the determination of Total Nitrogen content within
materials such as feeds, grains, soils, fertilizers, plant tissue, water, organic
wastes, and food products. The expression ‘Macro’ identifies the size of
sample vessel and the sample size that can be used with this equipment.
Other Kjeldahl systems are available, which use smaller sample vessels and
require smaller sample sizes. The apparatus can be used for the digestion
and/or distillation of all types of nitrogen containing samples. The system
consists of the Lower Digestion rack and Upper Distillation rack. Both are
used in standardized (Macro) Kjeldahl Nitrogen Determination Methods.
This Kjeldahl system is enclosed by a ventilated hood system which captures
excess heat and provides for personnel safety during the digestion and
distillation reactions. High temperature acid digestion and caustic distillation
comprise the two-step Kjeldahl Nitrogen determination method.
2117703 Twelve Place Hooded Combination Macro-Kjeldahl System