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<p>[QUOTE=&quot;Kentucky, post: 2932721, member: 33176&quot;]AA is Atomic Absorption, simplified, a dissolved substance is burned and the gas given off&nbsp; analyzed with spectroscopy.&nbsp; Oxygen is the usual oxidizing agent used, but nitrous oxide can also be used as the oxidizing agent.&nbsp; [USER=78298]@Michael K[/USER] yeah, living organisms would probably need some oxygen also.[/QUOTE]</p><p><br /></p>

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