XRF measurement and analysis method for solid waste

Abstract

The invention belongs to the technical field of solid waste element detection, and particularly relates to an XRF (X-Ray Fluorescence) measurement and analysis method for solid waste, which comprisesthe following steps of: (1) preparing a sample: taking a solid waste sample for pretreatment, adding microcrystalline cellulose, mixing the sample in proportion, grinding the sample by using an agatemortar, and fully grinding and mixing the sample to form a new sample for testing; (2) drawing a standard curve: taking a standard sample, preparing a sample according to the sample preparation methodin the step (1), taking the sample and performing XRF measurement and analysis on a machine, recording the X-ray fluorescence intensity, and drawing a standard curve; and (3) determining the contentof the elements in the solid waste: performing XRF determination on the tabletting sample prepared in the step (1) on a machine, and analyzing the content of each element in the sample according to the standard curve. According to the method, the speed of quantitative and qualitative analysis of the sample to be detected is high, the accuracy is high, the precision is high, compared with a standard value, the relative error of measurement and analysis data obtained through the method is small, and the requirement for environment monitoring is met.

Description

technical field [0001] The invention belongs to the technical field of solid waste element detection, and in particular relates to an XRF measurement and analysis method of solid waste. Background technique [0002] Solid waste generally refers to substances that lose their original use value or have not lost their use value but are discarded or abandoned in production, life or other activities. Solid waste can be roughly classified into industrial solid waste, urban domestic waste and hazardous waste. Waste, solid waste is generally piled up or applied to the soil or in other ways. Since solid waste may contain heavy metals and toxic components, it may cause environmental, soil and water quality impacts, thereby causing a series of environmental problems, affecting the ecological environment and the health of the people. [0003] The detection methods of elements in solid waste in the prior art include titration, electrode method, spectrophotometry, atomic fluorescence met...

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Problems solved by technology

[0002] Solid waste generally refers to substances that lose their original use value or have not lost their use value but are discarded or abandoned in production, life or other activities. Solid waste can be roughly classified into industrial solid waste, urban domestic waste and hazardous waste. Waste, solid waste is generally piled up or applied to the soil or in other ways. Since solid waste may contain heavy metals and toxic components, it may cause environmental, soil and water quality impacts, thereby causing a series of environmental problems, affecting the ecological environment and people's health

[0003] The detection methods of elements in solid waste in the prior art include titration, electrode method, spectrophotometry, atomic fluorescence method, atomic absorption method and inductive coupling, etc., but these methods are time-consuming and labor-intensive, with complicated operation steps and require the use of A large amount of solvents and easy to cause secondary pollution and other problems

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