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Direct Alcohol Biomarkers - EtG and PEth Webinar

Marijuana in Hair & Fingernail Webinar


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Latest Videos

Umbilical Cord Collection Training Video

Long-term Biomarkers for monitoring DUI/OWI offenders

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Latest Press Releases

Laboratory Improves Propofol Testing Following New Research Data Laboratory Improves Propofol Testing Following New Research Data

05-Jul-2013

New data from researchers at USDTL shows that propofol use can be detected in urine samples for as long as 28 days following low-dose anesthesia.

USDTL Develops Assay to Detect Zolpidem (Ambien®) in Fingernails and Hair USDTL Develops Assay to Detect Zolpidem (Ambien®) in Fingernails and Hair

01-Oct-2014

Des Plaines, IL - United States Drug Testing Laboratory, Inc. (USDTL), a forensic laboratory specializing in drug and alcohol testing using advanced specimens, has released a new assay to detect zolpidem (Ambien®) use in fingernail and hair specimens. Previously available only in urine and oral-fluid specimens, zolpidem testing in fingernails and hair offers forensic drug testing professionals new, powerful tools to meet their drug testing needs.

Improved Screening Assay For Buprenorphine in Umbilical Cord Improved Screening Assay For Buprenorphine in Umbilical Cord

01-Jul-2014

USDTL has succeeded in improving their umbilical cord screening assay for buprenorphine by reducing the positive result cutoff from 1.0 ng/g down to 0.5 ng/g. The improved umbilical cord buprenorphine assay gives the best possible detection of buprenorphine exposure, making it possible to identify more newborns exposed to buprenorphine in utero.


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