Skyray XRF provides both Portable XRFand Desktop XRF options that quickly analyze alloy composition for jewelry applications, scrap metal analysis, nuclear and petrochemical industries, primary and secondary manufacturing needs.
Also consider The Pocket, a portable and popular method of alloy verification

EDX-2800
Fast, accurate and repeatable
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EDX-3600B
Widest range of elements available
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Fast Fact:
The famous OSCAR statuette is made from the alloy Britannium
and is then plated in copper, nickel, silver, and finally, 24-karat gold.