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Closed heating acid-driving device and acid-driving method

A heating device and heating table technology, applied in the preparation of test samples, etc., can solve the problems of incomplete discharge of acid vapor, endangering the health of experimenters, cross-contamination between samples, etc., to improve experimental test efficiency, improve test efficiency, The effect of using less equipment

Pending Publication Date: 2021-04-16
NAT RESERACH CENT OF GEOANALYSIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a closed heating acid removal device and an acid removal method, which are used to solve the incomplete discharge of acid vapor and easy occurrence of acid vapor in the existing closed sample dissolution device with "inner tank + outer steel jacket" structure. Flying dust pollution endangers the health of experimenters and cross-contamination between samples, and one or more of the problems of cumbersome operation steps, high operation intensity, easy corrosion of outer steel sleeves, various equipment / devices used, and large space occupation

Method used

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  • Closed heating acid-driving device and acid-driving method
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  • Closed heating acid-driving device and acid-driving method

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Embodiment 1

[0054] A specific embodiment of the present invention discloses a closed heating and digestion device, such as Figure 1 to Figure 3 As shown, the closed heating and digestion device includes: a heating table, a sample dissolution tank 1 and a fixed sealing assembly; wherein, the heating table is provided with a plurality of sample dissolution tank installation holes 2-1; the sample dissolution tank 1 includes a tank body 1-1 and The cover body 1-2, the sample dissolution tank 1 is made of polytetrafluoroethylene, the sample dissolution tank 1 is disassembled and installed in the installation hole 2-1 of the sample dissolution tank, and the heating table is used to install the sample dissolution tank in the installation hole 2-1 A plurality of sample dissolution tanks 1 in 1 are heated; the fixed sealing assembly includes a fixed cover plate 6 and a closing bolt 8, the fixed cover plate 6 is located above the heating platform and is connected with the heating platform, and the ...

Embodiment 2

[0108] Another specific embodiment of the present invention discloses an airtight heating and acid removal device, which is used in conjunction with the airtight heating and digestion device in Example 1. After the sample is digested by the airtight heating and digestion device, the The airtight heating and acid removal device of the example performs acid removal treatment on the solution in the sample dissolving tank 1 .

[0109] A kind of closed sample dissolving and acid-dispelling device of the present embodiment, such as Figure 10 to Figure 12 As shown, it includes: a sample dissolution tank 1, a heating platform and an acid vapor collection and processing assembly; wherein, the metal base 2 of the heating platform is provided with a plurality of sample dissolution tank installation holes 2-1; the acid vapor collection and processing assembly is installed on the metal base 2 above and communicated with the sample dissolution tank 1, for collecting and processing the acid...

Embodiment 3

[0134] Based on the shortcomings of the existing "inner liner + outer steel sleeve" type closed sample dissolution device, this embodiment provides an integrated closed sample dissolution system that integrates the functions of closed sample dissolution, closed acid removal and sample redissolution. The sample dissolving and redissolving functions of the closed heating and digestion device of Example 1 and the closed acid removal function of the closed heating and acid removal device of Example 2. Considering that there are many common parts in the closed heating and digestion device of Example 1 and the closed heating acid removal device of Example 2, in order to simplify the structure of the system and reduce the volume, this embodiment provides an integrated closed sample dissolving system, which integrates The functions of sample dissolution, acid removal and reconstitution are integrated to realize sample dissolution, acid vapor collection and reconstitution under closed c...

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Abstract

The invention relates to a closed heating acid-removing device and an acid-removing method, belongs to the technical field of sample dissolving devices, and solves the problems of incomplete discharge of acid steam, easy generation of floating dust pollution, harm to the health of experimenters, cross contamination among samples, tedious operation steps, high operation intensity and low efficiency of the existing sample dissolving device. The closed heating acid driving device comprises a sample dissolving tank, a heating table and an acid steam collecting and processing assembly, and the heating table is provided with a plurality of sample dissolving tank mounting holes for heating the sample dissolving tank; and the acid steam collecting and processing assembly comprises an acid steam collecting plate, and the acid steam collecting plate is used for collecting and processing generated acid steam. According to the device and the method, acid is driven in a closed environment, acid steam is collected and treated, zero emission of toxic gas is realized, and the device is simple in structure, few in used equipment, low in operation intensity, high in experiment efficiency and low in cross contamination risk, conforms to the green, efficient and convenient analysis and test technology development concept, and has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of sample dissolving devices, in particular to an airtight heating acid removal device and an acid removal method. Background technique [0002] Most modern analytical instruments such as light and mass spectrometry need to convert solid samples into solutions before they can be measured. Therefore, sample digestion is a key step in the analysis of geological samples. At present, the commonly used digestion techniques mainly include acid dissolution, burning, melting and so on. Among them, the acid dissolution method has the longest history and the highest frequency of use. This method utilizes the action of heat and / or acid to decompose a solid sample, so that the elements contained in the sample are released from the complex matrix and converted into simple chemical forms. [0003] The process of acid-digesting samples can be carried out under both open and closed conditions. The acid-dissolving method ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/44
Inventor 周利敏温宏利王书谟陶迪
Owner NAT RESERACH CENT OF GEOANALYSIS
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