News Health & Medicine

To catch a cheat

Researchers know when urine has been tainted

By Ashley Yeager

- More than 2 years ago

Drano, All laundry detergent and Arm & Hammer baking soda have become drug-addicted job applicants’ last resorts to pass urine screenings. But researchers performing lab tests are one step ahead.

CHEATERS’ CHEMISTRY This illustration shows the chemical construction of pyridinium chlorochromate, one of the compounds drug addicts may use to cheat on a urine-based drug test.