VRAY Instrument Limited
An XRF Analyzer (X-ray Fluorescence Analyzer) is a powerful, non-destructive analytical instrument used to determine the elemental composition of various materials. It works by exciting a sample with X-rays, causing the atoms within the sample to emit secondary, fluorescent X-rays. Each element emits X-rays at a unique energy, allowing the analyzer's detector to identify which elements are present and in what concentrations. This technology is widely used across industries for quality control, material verification, and research due to its speed, accuracy, and non-invasive nature.
An XRF Analyzer is indispensable for gold purity testing, providing a fast and highly accurate method to determine the karat value and elemental composition of gold items without damaging them. Here’s a typical working example:
Imagine a jewelry store receiving a batch of gold items, including rings, necklaces, and scrap gold, from a supplier. Before purchasing, the store needs to verify the gold's purity.
Preparation: The jeweler places a gold ring directly onto the XRF analyzer's testing window. No complex sample preparation is needed, unlike traditional destructive methods.
Analysis: The jeweler activates the analyzer, which emits X-rays onto the ring. In just a few seconds (e.g., 30 seconds for the VRAY VR-H5), the analyzer collects the fluorescent X-rays emitted by the gold and other elements present (like copper, silver, or zinc, which are often alloyed with gold).
Results: The analyzer's software instantly processes the data and displays the precise elemental breakdown. The screen might show:
Gold (Au): 75.0%
Copper (Cu): 15.0%
Silver (Ag): 10.0%
Karat Value: 18K (since 75% gold is 18 out of 24 parts)
Decision Making: Based on these immediate and accurate results, the jeweler can confidently confirm the authenticity and value of the gold, ensuring fair pricing for both the buyer and the seller. This process is repeated for each item, quickly processing the entire batch.
This example highlights how an XRF analyzer provides a reliable, efficient, and non-destructive solution for accurate gold purity testing, crucial for businesses dealing with precious metals.
Using an XRF analyzer for gold purity testing is a straightforward process, typically involving these steps:
Power On and Warm-up: Turn on the XRF analyzer and allow it to complete its self-calibration and warm-up sequence. This usually takes a minute or two.
Sample Placement: Place the gold item (ring, coin, scrap, etc.) directly onto the analyzer's sample window or into its designated test chamber. Ensure the sample lies flat and covers the analysis area.
Select Test Mode: Choose the appropriate test mode for gold analysis from the analyzer's software interface. Some analyzers have pre-calibrated modes specifically for various karat values or general precious metal analysis.
Initiate Test: Press the "Start" or "Analyze" button. The analyzer will then emit X-rays for a set duration (e.g., 30 seconds). During this time, the instrument is collecting data from the emitted fluorescent X-rays.
View Results: Once the test is complete, the results will be displayed on the analyzer's screen. This typically includes:
The percentage composition of gold (Au) and other alloying elements (e.g., Ag, Cu, Ni, Zn, Pd, Pt).
The corresponding karat value (e.g., 24K, 22K, 18K, 14K, 10K).
Often, a visual spectrum showing the intensity peaks of each element.
Data Management (Optional): Save, print, or export the test results for record-keeping, certification, or client reports. Many XRF analyzers offer internal memory and connectivity options (USB, Bluetooth) for data management.
Remove Sample: Carefully remove the gold item from the analyzer.
This streamlined process makes XRF analyzers an indispensable tool for rapid and reliable gold purity verification.
For unparalleled accuracy, speed, and non-destructive analysis in gold purity testing, an XRF Analyzer is the ultimate solution. Eliminate guesswork, prevent fraud, and build trust with your customers.
Don't compromise on the quality and integrity of your precious metals.
Contact the VRAY professional team today to learn more about our state-of-the-art XRF Analyzers, including the highly acclaimed VR-H5 Handheld Gold Tester. Our experts are ready to provide detailed information, answer your questions, and help you find the perfect XRF solution for your business needs.
