Marc A LeBeau

Summary

Affiliation: Federal Bureau of Investigation
Country: USA

Publications

  1. ncbi request reprint The identification of mivacurium and metabolites in biological samples
    Madeline A Montgomery
    Federal Bureau of Investigation Laboratory, 2501 Investigation Parkway, Quantico, Virginia 22135, USA
    J Anal Toxicol 29:637-42. 2005
  2. doi request reprint Guidance for improved detection of drugs used to facilitate crimes
    Marc A LeBeau
    Federal Bureau of Investigation, FBI Laboratory, Quantico, VA 22135, USA
    Ther Drug Monit 30:229-33. 2008
  3. doi request reprint The role of variations in growth rate and sample collection on interpreting results of segmental analyses of hair
    Marc A LeBeau
    U S Federal Bureau of Investigation, Laboratory Division, 2501 Investigation Pkwy, Quantico, VA 22135, USA
    Forensic Sci Int 210:110-6. 2011
  4. ncbi request reprint Further evidence of in vitro production of gamma-hydroxybutyrate (GHB) in urine samples
    Marc A LeBeau
    Chemistry Unit, FBI Laboratory, Federal Bureau of Investigation, 2501 Investigation Parkway, Quantico, VA 22135, United States
    Forensic Sci Int 169:152-6. 2007
  5. ncbi request reprint A comprehensive study on the variations in urinary concentrations of endogenous gamma-hydroxybutyrate (GHB)
    Marc A LeBeau
    Chemistry Unit, FBI Laboratory, Federal Bureau of Investigation, 2501 Investigation Parkway, Quantico, VA 22135, USA
    J Anal Toxicol 30:98-105. 2006
  6. doi request reprint An automated SPE/LC/MS/MS method for the analysis of cocaine and metabolites in whole blood
    Eshwar Jagerdeo
    Federal Bureau of Investigation Laboratory, 2501 Investigation Parkway, Quantico, VA 22135, United States
    J Chromatogr B Analyt Technol Biomed Life Sci 874:15-20. 2008
  7. ncbi request reprint Qualitative identification of doxacurium and its breakdown products in postmortem fluids by liquid chromatography-tandem mass spectrometry
    Madeline A Montgomery
    Chemistry Unit, Federal Bureau of Investigation Laboratory, 2501 Investigation Parkway, Quantico, VA 22135, USA
    J Anal Toxicol 30:57-60. 2006
  8. doi request reprint A semi-automated solid-phase extraction liquid chromatography/tandem mass spectrometry method for the analysis of tetrahydrocannabinol and metabolites in whole blood
    Eshwar Jagerdeo
    Federal Bureau of Investigation Laboratory, Quantico, VA 22135, USA
    Rapid Commun Mass Spectrom 23:2697-705. 2009
  9. ncbi request reprint Ethanol analysis from biological samples by dual rail robotic autosampler
    Cynthia L Morris-Kukoski
    Federal Bureau of Investigation Laboratory, Quantico, VA, USA
    J Chromatogr B Analyt Technol Biomed Life Sci 850:230-5. 2007
  10. ncbi request reprint Rapid analysis of cocaine and metabolites in urine using a completely automated solid-phase extraction-high-performance liquid chromatography-tandem mass spectrometry method
    Eshwar Jagerdeo
    Federal Bureau of Investigation Laboratory, Quantico, Virginia 22135, USA
    J Anal Toxicol 32:570-6. 2008

Detail Information

Publications12

  1. ncbi request reprint The identification of mivacurium and metabolites in biological samples
    Madeline A Montgomery
    Federal Bureau of Investigation Laboratory, 2501 Investigation Parkway, Quantico, Virginia 22135, USA
    J Anal Toxicol 29:637-42. 2005
    ..This method has been used to analyze dozens of forensic samples, including clinical specimens from living patients, as well as autopsy specimens from exhumed bodies...
  2. doi request reprint Guidance for improved detection of drugs used to facilitate crimes
    Marc A LeBeau
    Federal Bureau of Investigation, FBI Laboratory, Quantico, VA 22135, USA
    Ther Drug Monit 30:229-33. 2008
    ..This article provides information on the manner in which drug-facilitated crimes occur, the drugs that are used to commit these crimes, and recommendations to improve the detection of these drugs through toxicologic analyses...
  3. doi request reprint The role of variations in growth rate and sample collection on interpreting results of segmental analyses of hair
    Marc A LeBeau
    U S Federal Bureau of Investigation, Laboratory Division, 2501 Investigation Pkwy, Quantico, VA 22135, USA
    Forensic Sci Int 210:110-6. 2011
    ..The results of this study suggest that the variability in the growth rate of human head hair, as well as the inconsistent collection of hair, significantly affect the interpretation of results from segmental analysis of hair...
  4. ncbi request reprint Further evidence of in vitro production of gamma-hydroxybutyrate (GHB) in urine samples
    Marc A LeBeau
    Chemistry Unit, FBI Laboratory, Federal Bureau of Investigation, 2501 Investigation Parkway, Quantico, VA 22135, United States
    Forensic Sci Int 169:152-6. 2007
    ..This potential for an artificial increase in GHB concentration must be appreciated when establishing the threshold between endogenous and exogenous concentrations of GHB...
  5. ncbi request reprint A comprehensive study on the variations in urinary concentrations of endogenous gamma-hydroxybutyrate (GHB)
    Marc A LeBeau
    Chemistry Unit, FBI Laboratory, Federal Bureau of Investigation, 2501 Investigation Parkway, Quantico, VA 22135, USA
    J Anal Toxicol 30:98-105. 2006
    ..The results of this study will aid the interpretation of low GHB concentrations measured in urine samples, particularly in investigations of drug-facilitated crimes...
  6. doi request reprint An automated SPE/LC/MS/MS method for the analysis of cocaine and metabolites in whole blood
    Eshwar Jagerdeo
    Federal Bureau of Investigation Laboratory, 2501 Investigation Parkway, Quantico, VA 22135, United States
    J Chromatogr B Analyt Technol Biomed Life Sci 874:15-20. 2008
    ..The bias and precision were determined using a simple analysis of variance (ANOVA: single factor). The results demonstrate bias as <7%, and %precision as <9% for all components at each QC level...
  7. ncbi request reprint Qualitative identification of doxacurium and its breakdown products in postmortem fluids by liquid chromatography-tandem mass spectrometry
    Madeline A Montgomery
    Chemistry Unit, Federal Bureau of Investigation Laboratory, 2501 Investigation Parkway, Quantico, VA 22135, USA
    J Anal Toxicol 30:57-60. 2006
    ..This procedure was used to analyze heart blood, cerebrospinal fluid, and bile specimens from the decedent. Doxacurium and its breakdown products were identified in all three specimens...
  8. doi request reprint A semi-automated solid-phase extraction liquid chromatography/tandem mass spectrometry method for the analysis of tetrahydrocannabinol and metabolites in whole blood
    Eshwar Jagerdeo
    Federal Bureau of Investigation Laboratory, Quantico, VA 22135, USA
    Rapid Commun Mass Spectrom 23:2697-705. 2009
    ..The bias and imprecision were determined using a simple analysis of variance (ANOVA: single factor). The results demonstrate bias as <7%, and imprecision as <9%, for all components at each quantity control level...
  9. ncbi request reprint Ethanol analysis from biological samples by dual rail robotic autosampler
    Cynthia L Morris-Kukoski
    Federal Bureau of Investigation Laboratory, Quantico, VA, USA
    J Chromatogr B Analyt Technol Biomed Life Sci 850:230-5. 2007
    ..This method demonstrated acceptable linearity from 0 to 1500 mg/dL. The lower limit of quantitation (LOQ) was determined to be 17 mg/dL and the limit of detection was 5 mg/dL...
  10. ncbi request reprint Rapid analysis of cocaine and metabolites in urine using a completely automated solid-phase extraction-high-performance liquid chromatography-tandem mass spectrometry method
    Eshwar Jagerdeo
    Federal Bureau of Investigation Laboratory, Quantico, Virginia 22135, USA
    J Anal Toxicol 32:570-6. 2008
    ..The bias and precision were determined using a simple analysis of variance (ANOVA: single factor). The results demonstrated bias as < 5% and % precision as < 9% for all components at each QC level...
  11. ncbi request reprint Intra- and interindividual variations in urinary concentrations of endogenous gamma-hydroxybutyrate
    Marc A LeBeau
    Chemistry Unit, FBI Laboratory, Federal Bureau of Investigation, Washington, DC 20535, USA
    J Anal Toxicol 26:340-6. 2002
    ..Patients with such a deficiency should be readily identifiable through prominent symptoms, repeated urinalysis, or genetic testing...
  12. ncbi request reprint LETTER TO THE EDITOR: Considerations on the Utility of Hair Analysis for Cocaine
    Marc A LeBeau
    Federal Bureau of Investigation, Laboratory Division, Quantico, Virginia
    J Anal Toxicol 33:343-4. 2009
    ..Their findings suggest that cocaine is incorporated into human hair via exterior contamination in concentrations that mimic the amounts found in the hair of cocaine users...