Resources :: Laws and Case Studies
Laws
Laws in Hand: Drug Testing State Laws :: Website
Drug Policy Alliance :: Website
Clinical and Non-Clinical Studies
Clinical Studies
The eScreen device (eScreen eCup and eScreen eReader) is intended to
provide preliminary analytical test results for Cannabinoids, Cocaine, PCP (Phencyclidine), Opiates (Morphine), and Amphetamine
(Methamphetamine) at the SAMHSA (NIDA) published
cutoff concentrations. The clinical human urine samples were aliquots obtained
from SAMHSA certified laboratories that had been previously screened by EMIT and confirmed
by GC/MS (Gas Chromatography/Mass Spectrometry) in accordance with guidelines established for SAMHSA certified laboratories.
Non-Clinical Studies
Analysis of the analytical sensitivity, stability, precision and specificity (interference with defined cross-reactive substances) were
conducted using human urine specimens spiked with known concentrations of the drugs/metabolites of interest. These human urine samples were
prepared from pools of certified negative urine. Certified negative urine pools were screened by immunoassay (Emit, Syva (Dade Behring) and
assayed by GC/MS). Positive urine materials were prepared from certified negative urine, spiked with known concentrations of pure drug and drug
metabolites. Positive urine stock solutions were verified by analysis using GC/MS. In each of these non-clinical tests, the eScreen system was
shown to reproducibly detect the presence of the indicated drugs of abuse at the cutoff concentrations specified on the previous page.