Begley P, Foulger B E
Chemistry and Materials Engineering Division, Admiralty Research Establishment, Poole, U.K.
J Chromatogr. 1988 Apr 1;438(1):45-53. doi: 10.1016/s0021-9673(00)90231-0.
Triclopyr, after esterification, is shown to be a suitable candidate for detection by gas chromatography-electron-capture negative-ion chemical ionization mass spectrometry forming a characteristic carboxylate anion which offers a high detection sensitivity. A detection limit of 70 fg reaching the ionizer is indicated. Low backgrounds and an absence of chemical interferences are shown for vegetation extracts, using a simple method of extraction and derivatisation. A similar behaviour is demonstrated for 2,4-D and 2,4,5-T.
