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Electrospray collision-induced dissociation of testosterone and testosterone hydroxy analogs.
Williams TM, Kind AJ, Houghton E, Hill DW. Williams TM, et al. Among authors: houghton e. J Mass Spectrom. 1999 Mar;34(3):206-16. doi: 10.1002/(SICI)1096-9888(199903)34:3<206::AID-JMS785>3.0.CO;2-1. J Mass Spectrom. 1999. PMID: 10214723
Quantification of 19-nortestosterone sulphate and boldenone sulphate in urine from male horses using liquid chromatography/tandem mass spectrometry.
Grace PB, Drake EC, Teale P, Houghton E. Grace PB, et al. Among authors: houghton e. Rapid Commun Mass Spectrom. 2008 Oct;22(19):2999-3007. doi: 10.1002/rcm.3698. Rapid Commun Mass Spectrom. 2008. PMID: 18777513
The use of combined high performance liquid chromatography negative ion chemical ionization mass spectrometry to confirm the administration of synthetic corticosteroids to horses.
Houghton E, Dumasia MC, Wellby JK. Houghton E, et al. Biomed Mass Spectrom. 1981 Nov;8(11):558-64. doi: 10.1002/bms.1200081107. Biomed Mass Spectrom. 1981. PMID: 7317570
The use of capillary column gas chromatography and negative ion chemical ionization mass spectrometry to confirm the administration of synthetic corticosteroids to horses.
Houghton E, Teale P, Dumasia MC, Wellby JK. Houghton E, et al. Biomed Mass Spectrom. 1982 Nov;9(11):459-65. doi: 10.1002/bms.1200091102. Biomed Mass Spectrom. 1982. PMID: 7159682
Deuteromethylation of dimethylxanthines: a gas chromatographic mass spectrometric method for confirmatory analysis in horse urine extracts.
Houghton E. Houghton E. Biomed Mass Spectrom. 1982 Mar;9(3):103-7. doi: 10.1002/bms.1200090305. Biomed Mass Spectrom. 1982. PMID: 7066481
Gas chromatographic and gas chromatographic/tandem mass spectrometric characterization of precursors on the sesterterpene pathway for steroid biosynthesis.
Tait AD, Abbs D, Teale P, Houghton E. Tait AD, et al. Among authors: houghton e. Biomed Environ Mass Spectrom. 1989 Aug;18(8):572-5. doi: 10.1002/bms.1200180811. Biomed Environ Mass Spectrom. 1989. PMID: 2804443
Biotransformation of 1-dehydrotestosterone in the equine male castrate: identification of the neutral unconjugated and glucuronic acid conjugated metabolites in horse urine.
Dumasia MC, Houghton E. Dumasia MC, et al. Among authors: houghton e. Biomed Environ Mass Spectrom. 1988 Nov;17(5):383-92. doi: 10.1002/bms.1200170507. Biomed Environ Mass Spectrom. 1988. PMID: 3207927
Capillary column gas chromatographic mass spectrometric analysis of anabolic steroid residues using splitless injections made at elevated temperatures.
Houghton E, Teale P. Houghton E, et al. Biomed Mass Spectrom. 1981 Aug;8(8):358-61. doi: 10.1002/bms.1200080808. Biomed Mass Spectrom. 1981. PMID: 7284573
Studies related to the metabolism of anabolic steroids in the horse: the metabolism of 1-dehydrotestosterone and the use of fast atom bombardment mass spectrometry in the identification of steroid conjugates.
Dumasia MC, Houghton E, Bradley CV, Williams DH. Dumasia MC, et al. Among authors: houghton e. Biomed Mass Spectrom. 1983 Jul;10(7):434-40. doi: 10.1002/bms.1200100709. Biomed Mass Spectrom. 1983. PMID: 6616021
The development of a gas chromatographic/mass spectrometric screening procedure to detect the administration of anabolic steroids to the horse.
Teale P, Houghton E. Teale P, et al. Among authors: houghton e. Biol Mass Spectrom. 1991 Mar;20(3):109-14. doi: 10.1002/bms.1200200303. Biol Mass Spectrom. 1991. PMID: 2069982
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