Quantitation of etorphine in urine by selective ion monitoring using tritiated etorphine as an internal standard.
Selective ion monitoring combined with GLC was used for the assay of etorphine in urine. Commercially available tritiated etorphine was added as an internal standard. The advantage of the methodology using this internal standard is higher sensitivity by a factor of about 20 when compared with ordinary GLC.
D000818:Animals; D002849:Chromatography, Gas / Q000379:methods; D005048:Etorphine / Q000652:urine*; D008297:Male; D013058:Mass Spectrometry / Q000379:methods; D009019:Morphinans / Q000652:urine*; D011817:Rabbits
D009019:Morphinans; D005048:Etorphine