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Analyzing gold is extremely necessary and relevant today since the products must correspond to the declared quality. The ability to quickly and accurately analyze gold is essential for narrow-profile specialists. For example, in the field of science, research, laboratories, and enterprises. Suppose you're working in the jewelry industry, with precious metals traders, or you are a jewelry store owner. In that case, gold testing machines for you will be extremely useful and so necessary.
How does the XRF Gold analyzer work?
XRF analysis method is based on the effect of X-ray fluorescence, which occurs when the sample is exposed to X-ray radiation. The energy spectrum of quanta scattered by a sample will have several intensive peaks, with energies that depend on electron energy levels in atoms from which the sample consists. These characteristic lines are unique for each element in the periodic table, which allows xrf analyzers to quantify the elemental composition of a sample based on the intensities of characteristic peaks observed in the spectrum. XRF gold analyzers can also detect plating, and calculate its thickness. In this case, quantification is based on the ratio of intensities of different characteristic lines of elements under the plating, as the attenuation coefficient depends on quanta energy. Due to different attenuation coefficients, the ratio of characteristic line intensities will be more distorted, the thicker the plating, which allows for quantitative analysis of plating thickness.
How accurate is the XRF gold tester?
The accuracy of the xrf gold analyzer may vary depending on the specifics of the device and analysis task. Generally, handheld xrf analyzers can provide accuracy in the order of 0.1-0.01% for gold samples with a measurement time of about five seconds. As for gold plating analysis, the measurement error usually does not exceed a fraction of a micron. High accuracy in combination with the express and non-destructive nature of analysis make gold scanner machines very popular among gold traders.
However, it is important to understand that xrf gold analyzer measures only the composition of the area at the spectrometer’s window. If the sample's composition is not uniform, xrf gold testers provide possibility of averaging of multiple measurements which allows to evaluation mean composition of a heterogeneous sample, but may impose additional error based on the number of measurements.
How much sample is needed for XRF gold analysis?
The amount of sample required for analysis may depend on sample and analytical elements generally, handheld xrf analyzers require at least a few grams of sample for adequate quantitative analysis. However, is is always better to have enough sample to cover the whole measurement window, as it will provide better statistics upon spectrum acquisition. It is worth to mention though, that apart from quantity, the preparation quality of a sample is crucially important to receive accurate analysis results. XRF gold checking machines do not require complicated sample preparation, however, it is still important to make sure that the sample’s surface isn’t contaminated and has a clear and even surface for analysis in the case of solid samples. In the case of powdery or heterogeneous samples, such as ores, grinding is required.
How deep does XRF penetrate gold?
X-ray penetration depth is estimated by X-ray attenuation length, which is the distance the incident beam of X-rays can travel in the bulk of the sample before its intensity drops to approximately a third of its initial value. X-ray attenuation length depends on the energy of X-ray quanta, as shown in Fig.1. Generally, lower energy quanta, have shorter attenuation lengths, which means that low Z elements are less visible if concentrated at some distance from a surface. The value of X-ray attenuation length in gold, for energy diapason which encompasses most of the analytical fluorescence lines, lies in the range of 0.1-10 micrometers, which means that unless sample’s composition is uniform in its volume, the xrf gold analyzer will provide the chemical composition of a near-surface area. This is especially important during gold ore testing, as, unlike alloys, the ore is very heterogeneous, and must be sufficiently grinded before analysis to represent the composition of a sample.
Gold Testing with Elvatech’s Guns
Agree, it is not always possible to devote a lot of time to the gold analysis process. We are all in a hurry in life, sometimes, there are simply not enough resources to take a product to a specialist. And resources are in short supply, as you know. At such moments, portable gold testing equipment comes to the rescue, which will analyze your material quickly, efficiently, and without unnecessary body movements. It is a technology that you can safely trust and be sure that your product's quality is appropriate. Elvatech has truly conquered the market with its innovative analyzer and has been proving its leadership in this area for many years. Our portable Guns are comfortable, reliable, and efficient to use.
Benefits of Using Elvatech’s XRF Testing Equipment for Gold
There are a lot of significant advantages of Elvatech's XRF Testing Equipment:
- It can accurately identify gold and give it characteristics
- This one does not damage the material, and it is absolutely safe
- It can help to prevent dangerous mixing of materials and identifies unwanted impurities
- All the information will become available in a few minutes of analysis as it is super fast
- The company cooperates with various international unions for precious metals and guarantees compliance with norms and safety in accordance with international standards. You can trust these guns 100%
- XRF gold testers are safe for the environment and harmless to food, agriculture, and so on
- Its size and weight are a huge plus, especially when it comes to transportation
Several of these advantages leave no doubt about the choice of a gun for testing gold.
Related products
ElvaX Jewelry Lab
ElvaX Basic
You Can Quickly Determine Gold Concentration in various forms
It doesn't matter in what format the gold is in your hands. Portable XRF analyzer for gold can scan:
- Gold bullion
- Gold ore
- Jewelry
It is convenient and progressive since you do not need to worry about the shape of a gold piece to analyze it. A portable gun can do this in any format.
Our Gold Testing Equipment
Of the existing scanner machines, there are several that are most suitable for gold analysis. These are the most popular handheld analyzers ever on the market.
ProSpector 2
It is a proven, reliable, and user-friendly XRF analyzer. Thanks to its advanced technology and precise mathematical algorithms, it provides the highest quality measurements quickly. Plus, it's intuitive and as accurate as possible.
ProSpector 3
A newer handheld model, the X-ray fluorescence analyzer, brings new analysis accuracy, speed, and detection limits. It is the smallest and lightest XRF gun on the market with an intuitive and user-friendly software interface. Its algorithms are applicable in various fields: alloys, precious metals, archeometry, plastics, and of course, gold.
ElvaX Geo
Compact, economical energy dispersive X-ray spectrometer perfectly goes for both qualitative and quantitative analysis of solids, liquids, and powders.
ElvaX Jewelry Lab
This device is more than others aimed at analyzing jewelry and precious metals. The analysis takes only a few seconds, and the result is displayed in both percentages and carats. Also, it detects coatings and non-standard alloys with ease. It is controlled using a special built-in computer with a touchscreen display or the software on your personal computer.
An excellent balance and even a built-in printer are also integrated there so that you can print analytical certificates indicating the chemical composition, weight, and even the price of the product. Analysis can be performed in any environment - you can test gold at home without any problem. This all making it the ideal benchtop gold testing machine.
By choosing any of these Elvatech XRF analyzers, you opt for affordability and effectiveness.
F.A.Q.
Is XRF analysis the most accurate way to test gold?
Accuracy of XRF is comparable with chemical analysis, which makes it the most accurate express analysis method.
Can XRF detect gold plating?
Yes, XRF can detect a wide range of plating and measure it’s thickness.
What is the difference between lab XRF and portable XRF?
Generally benchtop XRF analyzers employed in lab analysis are more accurate, while portable XRF are very autonomous and allow for express analysis even in field conditions.