2.1 Materials
Cisplatin (Accord Healthcare, 1 mg/mL) was purchased from University Hospital Pharmacy (London, ON, Canada). Chlorpropamide was purchased from Toronto Research Chemicals (Toronto, ON, Canada), atenolol-d7 from Sigma-Aldrich (Oakville, ON, Canada), flurazepam from Cerilliant (Round Rock, TX, USA), and DL-2-aminoheptanedioic acid from Bachem (Torrence, CA, USA). HPLC grade acetonitrile was purchased from Millipore Sigma (Oakville, ON, Canada). 10% formalin was purchased from VWR International (Mississauga, ON, Canada).