mass spectrometry
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Drug Screening: Why Screens Need Confirmation
A positive drug screen is not a result. It is a request for a second, definitive test, and the two-step design is deliberate rather than a…
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Mass Spectrometry: How Laboratories Weigh Molecules
A mass spectrometer never touches a balance. It measures how ions behave in fields, and everything else on the report is inference from that.
