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Random First Lines:Jacquelyn Fleurs was never fascinated with the idea of love or marriage; in her 22 years of life; she has constantly lived the life her father... » Read
Standard threshold levels for screening and confirmatory tests. Detection of specific drugs using standard Immunoassay as opposed to the confirmatory test GC/MS or Gas Chromatography.
The distinction between Gas Chromatography and Immunoassay when testing urine for drug testing.