These Genuine samples have been frequently suspected to have isotonitazene, metonitazene and/or other new artificial opioids. The genuine samples were prepared via the validated workflow explained above and analyzed by way of the Waters Xevo TQ-S Micro LC–QQQ-MS. For matrices besides blood and urine, quantitative Assessment was carried out using https://chemicalglobe.com/product-tag/protonitazene-for-sale-uk/