I have access to an XrF machine and its not showing any arsenic in alloys that by common internet wisdom say there should be some. It is however showing Silicon.
Does anybody know how these machines actually work?
Is it possible its confusing the two elements?
Has arsenic been replaced by silicon as a hardening agent?
Can the machine be programmed to look for specific elements and not report out others?
This is the results I got for sample of plumbers lead (5 pound hexagonal ingot).
lead.........silicon....Ti.........iron......phosp horous
90.00%...4.63%...0.71%..0.94%......0.20%