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4 protocols using mdma d5

1

Certified 3-MeO-PCP Quantification Protocol

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Certified solution of 3-MeO-PCP, at 1 mg/mL in methanol, used to prepare the working solutions for the calibration curve was purchased from Sigma Aldrich (Saint-Quentin-Fallavier, France). MDMA-d5, used as internal standard, was obtained from Lipomed (Arlersheim, Switzerland) and diluted to appropriate concentrations. Ammonium formate, >99%, di-sodium tetraborate decahydrate and ammonium acetate were provided by VWR Chemicals (Leuven, Belgium). Formic acid for LC-MS was obtained from Carlo Erba (Chaussée du Vexin). HPLC-grade acetonitrile, methanol, dichloromet­hane, n-hexane, ethyl acetate and diethyl ether, acetic acid and 36% hydrochloric acid were obtained from VWR Prolabo (Fontenay-sous-Bois, France). Isoamyl alcohol, β-glucuronidase and heptafluorobutyric acid (HFBA) were purchased from Sigma Aldrich.
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2

Quantitative Analysis of Drugs in Biological Samples

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Reference standards including the internal standards diazepam-d5, morphine-d6, methadone‐d3, mianserin-d3 and amphetamine-d5 or MDMA-d5 were purchased from Lipomed GmbH (Arlesheim, Switzerland), Cerilliant (Round Rock, TX, USA) or Toronto Research Chemicals (Toronto, ON, Canada). All reference standards were of ≥98% purity, as stated in the certificates. Acetonitrile (≥99.9%), methanol (≥99.9%), purified water, 2-propanol (≥99.5%) and ammonium formate (≥99.9%) were obtained from Fisher Scientific (Loughborough, UK) and were all LC–MS grade. Formic acid (98–100%) was purchased from Merck (Damstadt, Germany). Leucine enkephalin acetate was purchased from Sigma-Aldrich (St. Louis, MO, USA).
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3

Comprehensive Quantification of Illicit Drugs

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BE, AMPH, METH, MDMA, MOR, THC-COOH, and their deuterated analogues used as internal standards (BE-d3, MOR-d3, THC-COOH-d3, MDMA-d5) were purchased from Lipomed (Arlesheim, Switzerland). EtS and EtS-d5 were obtained from Restek (Bellefonte, PA, USA). Cotinine and Cotinine-d3 were purchased from Toronto Research Chemicals (TRC) (Ontario, Canada). Oasis HLB cartridges (6 mL/500 mg) were obtained from Waters Corporation (Milford, MA, USA). Glass-fiber filters (Whatman® glass microfiber filters, Grade GF/F, 0.7 μm) were purchased from Merck, (Darmstadt, Germany) as well as ammonium acetate, liquid chromatography grade methanol, ultrapure water, acetonitrile, and acetic acid (98 % purity).
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4

Quantitative Bioanalysis of MDMA, MDA, and MPh

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3,4-Methylenedioxymethamphetamine (MDMA); 3,4-methylenedioxyamphetamine (MDA); MDMA-D5; MDA-D5 and methylphenidate (MPh) were obtained from Lipomed (Arlesheim, Switzerland). Water was purified with a Purelab Ultra (Labtec, Villmergen, Switzerland) filtration unit. Alpha-cyano-4-hydroxycinnamic acid (CHCA), acetonitrile (ACN), methanol (MeOH), sodium carbonate (Na 2 CO 3 ), ethyl acetate (EtOAc), butyl acetate (ButOAc) and trifluoroacetic acid (TFA) were purchased from Sigma Aldrich (Buchs, Switzerland). All other chemicals used were purchased from Merck (Zug, Switzerland) and of the highest grade available.
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