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High-sensitivity and simultaneous analysis of Psychoactive drugs
       using LC-MS/MS with full-automated pretreatment system





          Introduction


          LC-MS/MS has become a preferred method for the routine   also increasing to investigate the cause of death. However,
          analysis for forensic toxicology. LC-MS/MS allows for the   manual sample preparation often involves several
          simultaneous analysis of multiple compounds in a single   complicated manual steps which can introduce error into
          run, thus enabling a fast and high throughput analysis. In   the results. In this study, we investigated the processing
          recent years that it seems the number of incident and   capability to analyze serum, whole blood and urine spiked
          accident is increasing caused by dosed with psychotropic   sixty psychotropic drugs by LC-MS/MS with automated
          drugs and the number of drug testing with LC-MS/MS is   sample preparation unit.


                               Group 1. Eight Barbiturate drug and Bromovalerylurea


                            Allobarbital  Amobarbital    Barbital   Pentobarbital  Phenobarbital
                            Secobarbital   Thiamylal   Thiopental   Bromovalerylurea



                                    Group 2. twelve Tri-/Tetra-cyclic antidepressant


                       Amitriptyline  Amoxapine Clomipramine Desipramine       Dosulepin Imipramine
                       Maprotiline  Mianserin Nortriptyline   Promethazine   Setiptiline




                             Group 3. Thirty-nine Benzodiazepines and their metabolites

                         Alprazolam    Bromazepam      Brotizolam  Chlordiazepoxide    Clorazepic

                         acid Clotiazepam     Cloxazolam    Diazepam    Estazolam    Ethyl
                         lo azepate   Etizolam   Fludiazepam    Flunitrazepam    Flurazepam

                         Flutazolam   Flutoprazepam     Haloxazolam    Lorazepam     Lormetazepam

                         Medazepam      Mexazolam     Midazolam   Nimetazepam      Nitrazepam
                         Oxazolam     Prazepam

                         Quazepam      Rilmazafone   To sopam     Triazolam   Zolpidem


                         7-Amino unitrazepam      7-Aminonimetazepam       7-Aminonitrazepam

                         α-Hydroxyetizolam (M-VI) α-Hydroxyalprazolam      α-Hydroxybrotizolam
                         α-Hydroxytriazolam     Zolpidem M-1



                                                      Figure 1  Target drugs





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