A digestion device for amino acid digestion experiments

Abstract

The invention discloses a digestion device for amino acid digestion experiments, in particular to a laboratory instrument, which includes an inner cylinder, a solid-liquid mixing mechanism and an outer sleeve; the solid-liquid mixing mechanism includes a fixed column, a first elastic Parts, mixing cylinder and storage mechanism; the bottom of the mixing cylinder is provided with a through hole for the passage of the fixed column, the first elastic piece is sleeved on the outer wall of the fixed column, and one end of the first elastic piece is connected with the inner cylinder The bottom end of the outer sleeve is fixed, and the other end is fixed with the bottom of the mixing tube; the opening end of the outer sleeve is provided with an opening and closing mechanism for sealing gas or ventilation, and the inner cylinder and the solid-liquid mixing mechanism are all set inside the outer sleeve , the side of the outer sleeve facing away from the open end is provided with a joint connected to the nitrogen ventilation pipe. Correspondingly, the side wall containing the inner sleeve is provided with a nitrogen outflow hole for nitrogen to flow out into the outer sleeve, accommodating the inner sleeve and the outer sleeve. A gap is left between the cylinders for the passage of nitrogen gas. The invention has the advantage of being convenient for experimenters to achieve homogeneity through vibration.

Description

technical field [0001] The invention relates to a laboratory instrument, in particular to a digestion device for amino acid digestion experiments. Background technique [0002] When determining the elements in the sample, the sample needs to be digested. The role of digestion treatment is to destroy organic matter and dissolve particulate matter, and oxidize the analyte elements in various valence states into a single high valence state or convert them into easily decomposed inorganic compounds. [0003] Among them, in the experimental process of digesting amino acids, it is carried out in an oxygen-free environment. The usual practice of experimenters is to add samples and reagents into small glass tubes, and inject enough nitrogen gas into the glass tubes to exhaust the air, and then use alcohol torches to seal them. However, during the above experiment, when the sample powder is added to the inside of the glass tube, it is often difficult for the middle part of the samp...

AI Technical Summary

Problems solved by technology

However, in the above experiment process, when the sample powder is added to the inside of the glass tube, it is often difficult for the middle part of the sample powder to fully contact with the reagent, which will affect the digestion effect

Images