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Tag: 21. Juli 2025

Which Gold Tester Gun Works Without Chemicals?

The short answer: Yes, there are gold tester guns that work without chemicals, and the most reliable technology behind them is X-ray fluorescence (XRF). Devices like VRAY’s VR-H5 handheld XRF analyzer offer a completely non-destructive, instant way to test gold…

How Do XRF Machines Identify Metal Type?

XRF machines identify metal types by analyzing the unique way each metal emits X-rays when exposed to a high-energy source. Every metal element emits a distinct “fingerprint” of energy, and XRF devices read that fingerprint in seconds. This allows users…

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