“…2020 Electrochemical sensor for determination of morphine in the presence of tramadol [ 797 ]; electrode for detection of LSD, MDMA and MA [ 798 ]; SERS method for simultaneous detection of ketamine and amphetamine [ 799 ]; a four-channel paper microfluidic device (mu PAD) that uses colorimetric sensors to detect cocaine, codeine and MA [ 800 ]; 2021 validation of an immunochromatography screening method and a GC-MS confirmation method for the detection of MA and amphetamine [ 801 ]; LCMS analysis of four illicit stimulants: 3,4-methylenedioxymethamphetamine (MDMA), 3,4-methylenedioxyamphetamine (MDA), cocaine and MA and three new psychoactive substances (NPS): ethylone, mephedrone and N-ethylpentylone for monitoring wastewater over the Christmas-New Year period in South Australia from 2016 to 2019 [ 802 ]; LC-HRMS method to detect two novel stimulants, mephedrone and ethylphenidate, and selected metabolites [ 803 ]; study on the emergence of N-methyl-2pyrrolidone in GBL-containing liquids in New Zealand [ 804 ]; GC-MS, HPLC-UV and LC-Q-ToF analysis of seized heroin and cocaine samples by Luxembourg Police and Customs in 2019–2020 [ 805 ]; sensor for electrochemical profiling of oxymorphone and heroin [ 806 ]; DFT study on the sensing properties of Al- and Si-doped HBC nanostructures toward GBL in presence of GBH and ecstasy [ 807 ];…”