Liquichek™ urine toxicology controls, levels S1S and S2S, have been designed for use with Dade®/Syva EMIT® reagents for amphetamines, cocaine metabolite (benzoylecgonine), and MDMA (ecstasy). The liquid, ready-to-use controls are prepared from human urine and are designed to provide an unbiased assessment of a laboratory’s drugs-of-abuse testing system. Unopened, the controls are stable for as many as 3 years when refrigerated. Once opened, the controls can be stored in a refrigerator for up to 30 days.

Bio-Rad Laboratories Inc
(800) 224-6723; www.bio-rad.com