[Simultaneous determination of 38 indazole amides synthetic cannabinoids and 15 metabolites in wastewater by solid phase extraction-liquid chromatography-tandem mass spectrometry].

Synthetic cannabinoids （SCs）， which are significantly more potent and efficacious than natural cannabis， are among the most widely abused new psychoactive substances. The emergence of the so-called first-generation SCs was followed by other SCs that eventually led to the development of eighth-generation indole/indazole amide-based SCs. Indeed， this entire category of SCs was added to the list of controlled substances on July 1， 2021. SCs can be disguised in various ways and are commonly sold in the form of electronic cigarette oil. SCs quickly enter the bloodstream through the lungs when smoked and are eventually excreted in the forms of precursors and metabolites in urine and feces following oxidation and metabolism， and finally enter the urban sewage system. SCs abuse can be studied and evaluated by analyzing SCs and their metabolites in municipal wastewater， thereby providing a practical reference. Therefore， methods for detecting SCs and their metabolites in wastewater need to be developed.In this study， a solid phase extraction （SPE）-liquid chromatography-tandem mass spectrometry （LC-MS/MS） method was developed for the simultaneous determination of 38 indazole amide SCs and 15 metabolites in wastewater. Samples were treated using Oasis