5424 Trump calls for DRUG TESTS before Biden debate (www.washingtonexaminer.com) posted 232 days ago by dontUseVinegerAsLube 232 days ago by dontUseVinegerAsLube +5424 / -0 481 comments share 481 comments share save hide report block hide child comments Comments (481) sorted by: top new old worst You're viewing a single comment thread. View all comments, or full comment thread. ▲ 4 ▼ – anon1011101 4 points 232 days ago +4 / -0 If you submit a urine sample for GC/MS you need a library of compounds to screen against. In other words, you need to be already looking for it. Most standard drug tests screen for maybe a dozen drugs at most permalink save report block reply
If you submit a urine sample for GC/MS you need a library of compounds to screen against. In other words, you need to be already looking for it. Most standard drug tests screen for maybe a dozen drugs at most