Objective Validation of a non-targeted method for urine drug screening (UDS) by liquid
chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF), and comparison to …

Drug screening is an essential analytical tool for detection of therapeutic, illicit and emerging
drug use. Presumptive immunoassay screening is widely used, while initial definitive testing …

There is an epidemic of prescription drug abuse in the United States, which has created an
increased burden on clinical toxicology laboratories and those who oversee drug testing …

UrinAid is a commercially distributed product that can be added to a urine specimen for the
expressed purpose of rendering it unfit for testing for drugs of abuse by immunoassay. The …

Specimen validity testing in urine drug monitoring of medications and illicit drugs: clinical
implications. - Abstract - Europe PMC Sign in | Create an account https://orcid.org Europe PMC …

A comparison of five non-instrumented urine drug-testing devices was performed using a
challenging clinical specimen set with drug concentrations close to the immunoassay …

Amphetamines and methamphetamines are part of an important class of drugs included in
most urine drugs of abuse screening panels, and a common assay to detect these drugs is …

The use of the urine drug screen (UDS) to test for substances of abuse has become
commonplace because urine is relatively easily obtained and concentrations of drug in urine …

On-site tests based on immunoassay techniques are widely used for toxicologic screening
analysis in patients with suspected poisoning. However, such assays usually have been …

We evaluated a new test device for amphetamines and methamphetamines (Frontline®, cut-
off limit 300 ng/mL) using authentic clinical and forensic specimens. The device is based on …