Illicitly manufactured fentanyl and amphetamine-type stimulants are major contributors to the opioid crisis in North America.

Researchers have shown that analyzing dried urine extracts with GC-MS/MS to assess levels of reproductive hormones in pre-and post-menopausal women provides similar results to radioimmunoassays using ...

The study, which was led by Ming-Yeh Yang and Ching-Yuan Huang of Tzu-Chi University, aimed to develop a rapid, sensitive and feasible method to determine 25(OH)D3 levels in blood for clinical ...

Reliable analytical workflows are essential to ensure the safety and quality of our food and environment. However, laboratories often face challenges with precision, sensitivity and time efficiency, ...

For roughly four months after Bexar County’s Adult Probation department shuttered its in-house lab and started farming out drug testing to a Texas company, the results coming back were unreliable at ...

Just like its name suggests, a urine drug test looks for any traces of substance abuse. The procedure is quick and painless, as it simply requires you to provide your urine as a sample for the test.

A urine drug test can quickly detect both illegal and prescription drugs in a person’s system. Doctors, sports officials, and many employers require these tests. Signs of drug use can remain in a ...

A recent study analyzed 76 soy sauces with the Chinese liquor baijiu as a base aged from 2010 to 2024 using gas chromatography–mass spectrometry (GC-MS), identifying systematic aging trends in 77 ...