Computer full-automatic Kjeldahl determination device

Abstract

The invention discloses a computer fully automatic Kjeldahl nitrogen instrument which is provided with a device for distilling and titrating a detected sample after thermal decomposition and digestion. The device comprises a steam unit, a distillation unit, a condensation unit, an absorption unit and a titration unit. A steam furnace of the vapor unit is connected to the distillation unit through a steam blocking valve; an output tube of a buffering bottle of the distillation unit is connected with the condensation unit; an output tube of a condensation tube of the condensation unit is connected to the absorption unit; the output end of a titrator of the titration unit is connected to a titration cylinder of the absorption unit through a pipeline; and all the units of the device are sequentially connected through pipelines that communicate with each other, and controlled by a single chip control circuit. A safety door position sensor is installed on the safety door of the Kjeldahl Nitrogen instrument, and a digestion tube position sensor is arranged inside the safety door. The Kjeldahl nitrogen instrument has the advantages of simple structure, convenient operation and high detection accuracy, and can achieve the full automation of the protein inspection procedure.

Description

technical field [0001] The invention relates to the technical field of instruments for measuring nitrogen content in food, feed, soil and chemical fertilizers, in particular to a computer-controlled full-automatic Kjeldahl azotometer. Background technique [0002] Protein is a complex nitrogen-containing organic compound, which is mainly composed of various amino acid chains. It is an important component of organisms and an important nutrient component for humans, animals, plants and microorganisms. Therefore, the determination of protein content is used in food processing. , Nutrition and health, agricultural production, feed industry and other fields are of great significance, and are highly valued in processing, production, research and trade in these fields. At present, domestic protein detection mostly uses manual detection, which is cumbersome to operate and the detection results are not accurate enough. The existing automatic azotometer has a single structure and stil...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of cumbersome operation and inaccurate detection results of the nitrogen determination instrument in the prior art, the present invention provides a computer-controlled automatic Kjeldahl nitrogen determination instrument with simple structure, convenient operation and high detection accuracy.

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