Comparison of LC-MS and LC-DAD Methods of Detecting Abused Piperazine Designer Drugs Posted on April 19, 2022April 19, 2022 By Becky Carter Anna Welz, Marcin Koba, Piotr Kośliński, Joanna Siódmiak J Clin Med; 11(7); 2022 Access article Chemistry, Seized Drugs/Controlled Substances, Toxicology