Carbon and nitrogen isotopic analysis of morphine from opium and heroin samples originating in the four major heroin producing regions
Thompson, Robert A, Morello, David R, Panicker, Sini, Toske, Steven G, Li, Li
Published in Drug testing and analysis (01.03.2022)
Published in Drug testing and analysis (01.03.2022)
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Journal Article
Organic impurity profiling of fentanyl samples associated with recent clandestine laboratory methods
Toske, Steven G, Mitchell, Jennifer R, Myslinski, James M, Walz, Andrew J, Guthrie, David B, Guest, Elizabeth M, Corbett, Charlotte A, Lockhart, Emily D
Published in Journal of forensic sciences (01.09.2023)
Published in Journal of forensic sciences (01.09.2023)
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Journal Article
Characterization and origin of the 'B' and 'C' compounds in the acid/neutral forensic signatures of heroin - products from the acylation of porphyroxine and subsequent hydrolysis
Casale, John F, Casale, Ellen S, Toske, Steven G, Hays, Patrick A, Panicker, Sini
Published in Drug testing and analysis (01.03.2017)
Published in Drug testing and analysis (01.03.2017)
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Journal Article
Isolation and characterization of a newly identified impurity in methamphetamine synthesized via reductive amination of 1-phenyl-2-propanone (P2P) made from phenylacetic acid/lead (II) acetate
Toske, Steven G, McConnell, Jennifer B, Brown, Jaclyn L, Tuten, Jennifer M, Miller, Erin E, Phillips, Monica Z, Vazquez, Etienne R, Lurie, Ira S, Hays, Patrick A, Guest, Elizabeth M
Published in Drug testing and analysis (01.03.2017)
Published in Drug testing and analysis (01.03.2017)
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Journal Article
The use of δ13 C isotope ratio mass spectrometry for methamphetamine profiling: Comparison of ephedrine and pseudoephedrine-based samples to P2P-based samples
Toske, Steven G, Morello, David R, Berger, Jennifer M, Vazquez, Etienne R
Published in Forensic science international (01.01.2014)
Published in Forensic science international (01.01.2014)
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Journal Article
Application of stereocontrolled aldol coupling to synthesis of segments of immunosuppressants FK-506 and rapamycin
White, James D., Deerberg, Jörg, Toske, Steven G., Yakura, Takayuki
Published in Tetrahedron (15.08.2009)
Published in Tetrahedron (15.08.2009)
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Journal Article
Four New Illicit Cocaine Impurities from the Oxidation of Crude Cocaine Base: Formation and Characterization of the Diastereomeric 2,3-Dihydroxy-3-Phenylpropionylecgonine Methyl Esters from cis- and trans-Cinnamoylcocaine
Casale, John F., Hays, Patrick A., Toske, Steven G., Berrier, Arthur L.
Published in Journal of forensic sciences (01.07.2007)
Published in Journal of forensic sciences (01.07.2007)
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Journal Article
Neutral Heroin Impurities from Tetrahydrobenzylisoquinoline Alkaloids
Toske, Steven G., Cooper, Samuel D., Morello, David R., Hays, Patrick A., Casale, John F., Casale, Ellen
Published in Journal of forensic sciences (01.03.2006)
Published in Journal of forensic sciences (01.03.2006)
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Journal Article
Alkaloid content of the seeds from Erythroxylum Coca var. Coca
Casale, John F, Toske, Steven G, Colley, Valerie L
Published in Journal of forensic sciences (01.11.2005)
Published in Journal of forensic sciences (01.11.2005)
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Journal Article
Unique bipiperidinyl impurities produced from the “One-Pot” synthesis of fentanyl
Casale, John F., Hays, Patrick A., Toske, Steven G., Mallette, Jennifer R.
Published in Forensic chemistry (01.03.2020)
Published in Forensic chemistry (01.03.2020)
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Journal Article
The use of delta 13C isotope ratio mass spectrometry for methamphetamine profiling: Comparison of ephedrine and pseudoephedrine-based samples to P2P-based samples
Toske, Steven G, Morello, David R, Berger, Jennifer M, Vazquez, Etienne R
Published in Forensic science international (01.01.2014)
Published in Forensic science international (01.01.2014)
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Journal Article