(noun) The attitudes, behavior, beliefs, customs, habits, language, and values that are characteristic of a group, society, or organization in a particular place and time, the accumulated knowledge of which is passed to the next generation through socialization.xample: The culture of a nonprofit that promotes community activism as a method of curbing violence against women. Audio Pronunciation: (culÂ·ture). Download Audio Audio Pronunciation: culture.mp3. Usage Notes: 1  Plural: cultures.
Q: What is GC/MS? A: GC/MS is the abbreviation for gas chromatography/mass spectrometry, the testing methodology LabCorp uses to confirm presumptive positive drug screen specimens. GC/MS provides identification of the molecule(s) based on characteristic fragmentation patterns at specific retention times. GC/MS is a tandem technology, utilizing a gas chromatograph coupled to a mass spectrometer. Q: Why are screening and confirmation cut-off levels different? A: Simply stated, screening and confirmation testing are performed using different testing methodologies that precipitate different cut-off levels.
The chances your sample would go straight to GC/MS are slim to none. GC/MS is only used after an immunoassay test to confirm any non negatives or to test a B sample of a split sample. If you pass a home test chances are in the high 90's that you would pass a lab test either immunoassay or GC/MS. The GC/MS is not more sensitive - its just more accurate than the Immunoassay screen. Even though their cutoff levels are different, a 50 ng Immunoassay is equivalent to the 15 ng GC/MS. The difference is that the assay looks at all 31 metabolite concentrations, while the GC/MS looks at one metabolite concentration (THC-COOH). If you were to fail the GC/MS, you wouldve failed the Immunoassay as well.