Investigating the presence of metals on precious stones in the jewelry making process
Introduction
The ability of X-XRF in jewelry applications is well illustrated in this article.
In order to study metallization on precious stones, many methods have been used to identify the properties.
This paper shows how ϻXRF provides relevant information about the chemical composition of these materials. In this research, high-resolution X-ray micro analyzer made by UNISANTIS Company was used to perform µ-XRF studies.
Background of device application
Gemstones, which are part of a piece of jewelry, are usually classified as chips based on the analysis of fine metal particles (micron-sized). These metal particles are found in areas of rock that have been cut and mounted.
Used Tools
The measurement on the above sample was performed using X-ray micro analyzer model XMF-104 made by UNISANTIS company. This device is equipped with a 50 watt molybdenum tube and a high-resolution compact Si-PIN detector and two-stage Peltier cooled.
The EDXRF spectrum obtained from this analysis are shown in Figure 1.
The dimensions of the device are significantly reduced and the detector no longer needs liquid nitrogen to cool down.
The XMF-104 uses a Polycapillary focusing lens that produces a very small focused X-ray. The usual size of the focal point at the lens output varies between 50 and 250 microns.
Discussion
The EDXRF microanalysis spectrum obtained from the emerald sample can be seen in Figure 1. This spectrum clearly shows the presence of gold and copper in the sample. Quantitative analysis of chemical compounds is determined using approximation of initial parameters. The results show the presence of 58% gold and 42% copper. These results also show that the metal particles on the rock are an alloy of gold and copper.
Conclusion
The present study demonstrates the simplicity of operation and capability of the XMF-104 X-ray micro analyzer manufactured by UNISANTIS in research on precious stones and jewelry.
Such a study was made possible by the EDXRF spectrum obtained from the XMF 104 micro analyzer. This device is equipped with a low power tube. In this device, the primary X-ray emitted from the low-power tube is paralleled using a Komakhov polycapillary lens.
Other benefits
UNISANTIS XMF-104 devices are:
- No need for gas
- No need for an external water cooler system for the X-ray tube
- Small effect range
- Low power tube
Investigating the presence of metals on precious stones in the jewelry making process
Introduction
The ability of X-XRF in jewelry applications is well illustrated in this article.
In order to study metallization on precious stones, many methods have been used to identify the properties.
This paper shows how ϻXRF provides relevant information about the chemical composition of these materials. In this research, high-resolution X-ray micro analyzer made by UNISANTIS Company was used to perform µ-XRF studies.
Background of device application
Gemstones, which are part of a piece of jewelry, are usually classified as chips based on the analysis of fine metal particles (micron-sized). These metal particles are found in areas of rock that have been cut and mounted.
Used Tools
The measurement on the above sample was performed using X-ray micro analyzer model XMF-104 made by UNISANTIS company. This device is equipped with a 50 watt molybdenum tube and a high-resolution compact Si-PIN detector and two-stage Peltier cooled.
The EDXRF spectrum obtained from this analysis are shown in Figure 1.
The dimensions of the device are significantly reduced and the detector no longer needs liquid nitrogen to cool down.
The XMF-104 uses a Polycapillary focusing lens that produces a very small focused X-ray. The usual size of the focal point at the lens output varies between 50 and 250 microns.
Discussion
The EDXRF microanalysis spectrum obtained from the emerald sample can be seen in Figure 1. This spectrum clearly shows the presence of gold and copper in the sample. Quantitative analysis of chemical compounds is determined using approximation of initial parameters. The results show the presence of 58% gold and 42% copper. These results also show that the metal particles on the rock are an alloy of gold and copper.
Conclusion
The present study demonstrates the simplicity of operation and capability of the XMF-104 X-ray micro analyzer manufactured by UNISANTIS in research on precious stones and jewelry.
Such a study was made possible by the EDXRF spectrum obtained from the XMF 104 micro analyzer. This device is equipped with a low power tube. In this device, the primary X-ray emitted from the low-power tube is paralleled using a Komakhov polycapillary lens.
Other benefits
UNISANTIS XMF-104 devices are:
- No need for gas
- No need for an external water cooler system for the X-ray tube
- Small effect range
- Low power tube
