Rapid detection method for noble metal

Abstract

The invention discloses a rapid detection method for noble metal. The rapid detection method comprises the following steps of: 1) weighing the mass of a sample to be detected by a precision balance and vacuumizing the sample to be detected; 2) immersing the sample to be detected in distilled water and weighing the mass of the immersed sample by using the precision balance; 3) calculating the actual density of the sample to be detected; 4) detecting the content of the noble metal and impurity elements in the sample to be detected by utilizing an X fluorescence spectrograph and calculating the theoretical density of the sample to be detected; and 5) calculating an error between the actual density and the theoretical density of the sample to be detected, wherein if the error is in a range of 0.5%, testing data of the sample to be detected is accurate. The method disclosed by the invention can detect a plurality of samples to be detected at the same time and can analyze the reliability of detection results of the plurality of samples to be detected from a plurality of angles, so that a final detection conclusion is obtained and the accuracy of detection data is guaranteed; and the data can be rapidly obtained and an effective manner is provided for the development of the mass detection work.

Description

Technical field [0001] The invention relates to a quality detection method, in particular to a rapid detection method for precious metals. Background technique [0002] In view of the increasing difficulty of detecting precious metal jewelry, technical testing institutions at home and abroad are developing new detection methods and detection methods in a targeted manner. These technologies include X-ray fluorescence spectroscopy, density method, chemical method, etc. High-speed, effective and accurate solutions to difficult problems encountered in actual work. [0003] At present, the non-destructive testing of precious metals mainly relies on X-ray fluorescence spectroscopy and density method. Both methods have their own advantages and disadvantages. X-ray fluorescence spectroscopy has the advantages of simple operation and fast detection speed. The disadvantage is that the instrument has poor penetration and can only analyze the surface of the sample, and cannot detect the insid...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defect that only a single sample can be detected in the prior art, and multiple samples cannot be detected at the same time to achieve rapid detection, and its density measuring instrument is more accurate for samples with simple shapes, but for samples with complex shapes, especially internal There are defects of large measurement errors in samples with gaps and micropores. The present invention provides a rapid detection method for precious metals that realizes rapid and accurate measurement

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