“…Takesada et al [14] HDMT 24 hour urine Ext, Dowex 50 column, alumina column 1966 Runge et al [15] HDMT 1 L of urine pH 8-9, butanol ext, acetone ppt, acetone 1966 Perry et al [16] DMT, HDMT Heller [17] HDMT 1 L of urine NaHCO3 sat., butanol, evap, acetone 1967 Fischer and Spatz [18] HDMT 100 ml fresh urine NaCO3, ether ext, evap, acetone 1967 Kakimoto et al [19] DMT, HDMT 24 hour urine; vol 600 mg creatinine analyzed Ext, Dowex 50 column, alumina column 1967 Tanimukai [20] HNMT, HDMT, NMT, DMT, MDMT Fischer et al [33] HDMT, glucuronide 50 ml morning urine; w/wo glucuronidase Liquid-Liquid ext; w/wo glucuronidase treatment 1972 Himwich et al [34] HDMT, DMT, MDMT Narasimhachari et al [35] HDMT, DMT, MDMT 24 hour urine Walker et al [36] DMT plasma; DMT stable for 60 days at 6 degrees C HCL ext acid pH with CHCl3, pH 9, ext CHCl3, evap Wyatt et al [37] DMT plasma HCL ext acid pH with CHCl3, pH 9, ext CHCl3, evap 1973 Narasimhachari and Himwich [38] DMT, HDMT Lipinski et al [39] DMT plasma separated by centrifugation HCL ext acid pH with CHCl3, pH 9, ext CHCl3, evap 1974 Bidder et al [40] DMT Heparinised plasma or whole blood; 24 hr urine HCL ext acid pH with CHCl3, pH 9, ext CHCl3, evap 1974 Narasimhachari et al [41] HDMT, DMT, MDMT Forsstrom et al [67] DMT, MDMT, HDMT, NMT morning and afternoon urines; 5 ml assayed urine centrifuged and ext on Oasis SPE cartridge 2005 Karkkainen et al [68] DMT, HDMT urine (5 ml), plasma or serum (1 ml), stool;…”