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<p>[QUOTE=&quot;Kentucky, post: 3102548, member: 33176&quot;]I love and respect you, but you are waaaaaaaaaaaaay off base on this one.&nbsp; The &quot;sniffing&quot; has nothing to do with sampling vapors or with mass spectrometry.&nbsp; The two methods used (as far as I know) are infrared analysis and x-ray spectrometry.&nbsp; These techniques detect organic and inorganic substances on the surface.&nbsp; The reason VerdiCare passes is that the techniques (infrared for this) are just not sensitive enough to pick up such a thin film.&nbsp; Gas sampling mass spectrometry is much more expensive and wouldn&#039;t have that much use.&nbsp; Perhaps [USER=17261]@BadThad[/USER] would comment here since VerdiCare is his baby.[/QUOTE]</p><p><br /></p>

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