title: Evidence for the lack of a carrier effect in the solvent extraction and determination of octopamine by gas chromatography mass spectrometry.
abstract: It has been shown that there is no significant carrier effect when low levels of [3H]octopamine (100 pg) are extracted by ethyl acetate from aqueous solutions containing a 10(3) or 10(6) times excess of unlabelled octopamine. It is also shown that there is no carrier effect when low levels of octopamine as the tetrakis-TMS derivative are injected with 100 times the amount of the [2H3] analogue on an SE 30 column.
mesh_terms: D002849:Chromatography, Gas; D003903:Deuterium; D013058:Mass Spectrometry; D009655:Octopamine / Q000032:analysis* / Q000302:isolation & purification; D014316:Tritium
chemical_list: D014316:Tritium; D009655:Octopamine; D003903:Deuterium