Sample digestion processing device

Abstract

The invention provides a sample digestion processing device, which comprises a frame, a heater and a solvent supply mechanism, wherein the heater is provided with more than one test tube accommodating hole; test tubes can be arranged in the test tube accommodating holes; the solvent supply mechanism is provided with a feeding nozzle which is arranged above the heater, can move transversely and / orlongitudinally in the horizontal plane, and is connected with a solvent storage chamber; and the heater and the solvent supply mechanism are respectively arranged on the frame; a test tube bracket isarranged on the heater; through holes corresponding to the test tube accommodating holes of the heater is formed on the test tube bracket; the heater comprises a heat-insulating tank body, and a heatconducting body arranged in the heat-insulating tank body; the test tube accommodating holes are formed on the heat conducting body; and the test tubes are arranged in the test tube bracket and the test tube accommodating holes. In the sample digestion processing device, the solvent is fed by the solvent supply mechanism, the sample is digested not by a manual wet digestion method, and the devicecan realize the quick digestion processing of quantitative solvents and samples added into the test tubes.

Description

technical field [0001] The invention relates to a treatment device for inorganic samples, in particular to a sample digestion treatment device which can replace manual wet digestion and realize automatic solvent addition, automatic constant volume and complete digestion. Background technique [0002] Soil, tobacco, meat, feed, ore and other samples usually require digestion or other pre-treatment steps before analysis. The pretreatment of the sample is usually to add strong acid to the sample, digest it at high temperature, and then dilute the digested sample to a preset volume, and then perform analysis and detection. [0003] At present, most of the known digestion instruments are manually operated, and need to manually strengthen the acid and manually adjust the volume, and the strong acid is strongly corrosive, which will cause great harm to the operator and the laboratory environment. Moreover, the manual operation is complicated, the sample processing time is too long...

AI Technical Summary

Problems solved by technology

[0007] 1. The acid is manually strengthened, which is easy to cause harm to the human body and the environment

And the amount of solvent or sample added cannot be accurately controlled, so the accuracy of adding solvent or sample cannot be guaranteed

[0008] 2. The work content is complicated

Since there is no automatic constant volume function, the operator needs to keep monitoring during the experiment to prevent the solvent from being "evaporated to dryness"

[0009] 3. The sample cannot be completely digested

Since the sample is only heated without shaking, the strong acid may not completely react with the sample, resulting in low digestion efficiency

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