Trace uranium sample pretreatment equipment

Abstract

The invention provides trace uranium sample pretreatment equipment which comprises a sample conveying device, a washing device and a soaking solution applying device, wherein the sample conveying device is used for conveying at least one trace uranium sample adsorbate on which a trace uranium sample is adsorbed; the washing device is used for washing the at least one trace uranium sample adsorbate conveyed through the sample conveying device; the soaking solution applying device is used for applying a soaking solution into the washed trace uranium sample adsorbate so as to leach the trace uranium sample from the trace uranium sample adsorbate. According to the trace uranium sample pretreatment equipment provided by the embodiment of the invention, the trace uranium sample analysis efficiency is improved, the working amount of operators is alleviated, the working efficiency in trace uranium sample pretreatment is improved, and the great practical significance in large-scale sample analysis and timing control is achieved.

Description

technical field [0001] The invention relates to the technical field of trace uranium sample pretreatment, in particular to trace uranium sample pretreatment equipment. Background technique [0002] The analysis of trace uranium is one of the important contents in the determination of uranium content, such as tailings and waste liquid in uranium ore hydrometallurgy, tailings and tail gas in uranium conversion, waste liquid and waste organic phase in post-treatment process, The content of trace uranium in purified water and other materials in the treatment of three wastes is a reflection of process efficiency and product recovery rate. The analysis of trace uranium runs through all links of the entire nuclear fuel cycle. The uranium content of water and soil in environmental samples belongs to the range of trace uranium. The analysis of trace uranium is a daily analysis item, especially for the environmental monitoring of rare earth mines and nuclear facilities. A large number...

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Problems solved by technology

[0004] However, the measurement of trace uranium by time-resolved fluorescence method is significantly affected by interfering ions in the solution. In the post-processing application, the sample needs to be pre-treated by solvent extraction.

The process of sample pretreatment by solvent extraction has many steps, and almost every step is a quantitative operation. Therefore, it is difficult to operate in the glove box and the processing time is long. The analysis time of a single sample is about 40 minutes. The processed sample system is not stable. Unification, which directly affects the analysis speed and effect

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