Detailed explanation of the best way to detect golden detection

Detailed explanation of the best way to detect golden detection

Gold is a precious precious metal that is favored by people's scarcity, not easy to corrode and good ductility.However, there are many fake and shoddy gold products in the market, so it is particularly important to perform accurate and reliable testing of gold.This article will introduce several common and effective golden detection methods in detail.

external assessment

Appearance testing is the simplest and intuitive method. It is preliminary judgment of the authenticity of the authenticity of the surface of the golden sample.Gold with high purity usually shows the characteristics of bright and uniformity, anaerobic spot or defects; and other materials doped or fake may have abnormal colors and abnormalities such as oxide points.

Density test

Density test is one of the common methods based on physical principles.Because the substances of different purifications and ingredients have different density, it can be judged by whether the samples to be tested and the standard density values are compliant.In practical operations, the density test can be used to use the mercury proportion or quantity method.

X -ray fluorescent analysis

X -ray fluorescent analysis is a non -broken, fast and efficient, and accurate and reliable detection method.This technology uses X -ray to stimulate the sample to generate fluorescence, and determines the content and component ratio of the element in the sample according to the element characteristics.X -ray fluorescent instruments can quickly and accurately identify various alloys and doping conditions.

Chemical reagent

The chemical reagent method mainly determines its composition and purity by observing color changes or reaction product forms by observing color changes or reaction product forms on the sample.For example, if the nitrate solution is treated with the surface, and the hydrocytic acid solution is added, a dark blue complex will be generated at the appropriate amount; if it contains other materials, it may show other color reactions.

Directors test

The conductivity test is mainly used for the use of a large number of non -conductors (such as copper) when the number of mixes is large. Under a constant voltage, the number of ions contained in the unit length is calculated to inferTo verify whether it is genuine or fake.

These are currently widely used and proved to be effective and reliable and advantages and disadvantages. Choose better results to achieve better results through these methods and experience.