In the world of precious metals, accurate analysis is crucial. Whether you're a jeweler, a pawnbroker, or a geologist, knowing the exact composition of gold is essential for valuation and verification. Handheld X-ray fluorescence (XRF) analyzers have revolutionized this process, offering quick and non-destructive analysis on the spot. Here’s how you can effectively conduct gold analysis using a handheld XRF analyzer:

1. Understanding Handheld XRF Technology

Handheld XRF analyzers work by bombarding the sample with X-rays, which excite the atoms in the material. These excited atoms emit characteristic X-ray fluorescence that is then analyzed to determine the elemental composition of the sample. Each element, including gold, emits unique X-ray wavelengths, allowing the analyzer to identify and quantify the amount present.

2. Preparing for Analysis

Calibration: Ensure your XRF analyzer is calibrated for gold analysis. Calibration is typically done using known standards to accurately correlate X-ray emissions with gold content.

Sample Preparation: While handheld XRF analyzers are non-destructive, ensuring a clean and flat surface on the sample enhances accuracy. Wiping the sample with a clean cloth can remove surface contaminants that might interfere with the analysis.

3. Conducting the Analysis

Positioning the Analyzer: Hold the handheld XRF analyzer over the sample. Most devices have a laser or a visual guide to help you accurately position the X-ray beam on the sample.

Initiating the Analysis: Trigger the X-ray emission. The analyzer will emit X-rays onto the sample, and within seconds, it will collect the emitted X-rays from the sample's surface.

Interpreting the Results: Once the analysis is complete, the XRF analyzer displays the elemental composition on its screen. The results typically include the percentage of gold (Au) present along with other detected elements.

Benchtop gold analyzer- Aurora 900 gold analyzer

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4. Ensuring Accuracy and Interpretation

Verification: For critical applications, verify results with multiple measurements or compare with laboratory assays if necessary.

Understanding Alloys: XRF analyzers can distinguish between pure gold and gold alloys, providing detailed compositions that include percentages of other metals like silver, copper, or platinum present in the sample.

The Aurora 900 series by Terra Scientific is a groundbreaking benchtop gold analyzer that offers a fast and exceptionally precise method for determining gold concentration or karat, catering to quality control, pricing, and practical applications. It enables users to perform immediate, cost-effective, and completely non-destructive tests to determine gold purity and verify alloy compositions.

Besides gold, Aurora 900 series in analyzing a wide range of other precious metals. The analyzer comes with a comprehensive elements analysis, such as Ag, Pd, Rh, Ru, Au, Pt, Ir, Zn, Cu, Re, Ta, Hf, Ni, Co, Fe, Ti, Cr, Mn, Pb, Bi, Zr, Sn, Sb, Cd, In, Ga, Ge, W, Os etc.(for models with SDD detectors). With the Terra Aurora 900 series, precisely measuring the concentration of precious metals in jewelry, coins, and other valuable items takes only seconds.

FEATURES OF AURORA 900: Operable independently with an interal touch screen panel or connected to a computer if necessary.  Capable of testing coatings/platings to identify counterfeit or gold-plated items, rapid and straightforward operation, delivering results in seconds via the color touchscreen. 

7. Conclusion

Conducting gold analysis with a handheld XRF analyzer is a powerful tool for professionals needing accurate and immediate results. By following these steps and understanding the capabilities of your device, you can confidently assess the purity and composition of gold samples on-site, enhancing efficiency and reliability in your work.

Terra Scientific is a high-tech manufacturer specializing in the development and application of X-ray technology products. We currently offer a range of XRF analyzer products to customers worldwide.  We continue to provide services to global customers in the fields of machinery manufacturing, metal processing, mining geology, environmental protection, scientific research and other fields.

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