Labconco Two and Six-Place (Macro) Kjeldahl Distillation Systems 2127603 - Manual (Page 5)

Chapter 1: Introduction
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General Description
Labconco’s Two and Six-Place (Macro) Kjeldahl Distillation Systems are
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. This apparatus can be used for the distillation of
all types of nitrogen containing samples. The Two and Six-place Distillation
Systems can be used to perform a standardized Macro-Kjeldahl Nitrogen
Determination Method.
The Kjeldahl Distillation Systems are not enclosed, excess heat and personnel
safety during the distillation reaction must be considered when selecting an
installation location. The Kjeldahl Distillation Method is a ‘Closed
Distillation,’ no chemical fumes are released during the procedure. The
Distillation procedure does involve boiling concentrated sodium hydroxide at
high temperatures. Labconco recommends placing Two and Six-Place
Distillation Systems inside a chemical fume hood for safety. Labconco
recommends a splash shield be placed in front of the Distillation Systems if
they are installed on the open lab bench.
2128501 & 2127601 Two-Place and Six-Place Kjeldahl Distillation Systems