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Y. Caplan · SciRah

Researcher profile · Semantic Scholar

Y. Caplan

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Y. Caplan — researcher profile on SciRah

h-index: 32
Works: 125
Citations: 3,531

Most-cited papers

Alternative specimens for workplace drug testing.
Y. Caplan, Bruce A. Goldberger
2001Journal of Analytical Toxicology187 citations
Semantic Scholar
A comprehensive study of the stability of cocaine and its metabolites.
D. Isenschmid, Barry S. Levine, Y. Caplan
1989Journal of Analytical Toxicology186 citations
Semantic Scholar
Normalization of urinary drug concentrations with specific gravity and creatinine.
E. Cone, Y. Caplan, F. Moser, T. Robert +2 more
2009Journal of Analytical Toxicology175 citations Open access
Semantic Scholar
Testing human hair for drugs of abuse. III. Identification of heroin and 6-acetylmorphine as indicators of heroin use.
Bruce A. Goldberger, Y. Caplan, Tom Maguire, E. J. Cone
1991Journal of Analytical Toxicology141 citations
Semantic Scholar
Disposition of heroin and its metabolites in heroin-related deaths.
Bruce A. Goldberger, E. J. Cone, Terrance M. Grant, Y. Caplan +2 more
1994Journal of Analytical Toxicology136 citations
Semantic Scholar
The characterization of human urine for specimen validity determination in workplace drug testing: a review.
J. D. Cook, Y. Caplan, C. Lodico, Donna M. Bush
2000Journal of Analytical Toxicology106 citations
Semantic Scholar
Urine pH: the effects of time and temperature after collection.
J. D. Cook, Kathy A. Strauss, Y. Caplan, C. Lodico +1 more
2007Journal of Analytical Toxicology103 citations
Semantic Scholar
Oxycodone involvement in drug abuse deaths: a DAWN-based classification scheme applied to an oxycodone postmortem database containing over 1000 cases.
E. Cone, R. Fant, J. Rohay, Y. Caplan +4 more
2003Journal of Analytical Toxicology103 citations
Semantic Scholar
Opiate analysis in cadaveric blowfly larvae as an indicator of narcotic intoxication.
F. Introna, Charles Lo Dico, Y. Caplan, J. Smialek
1990Journal of Forensic Sciences93 citations
Semantic Scholar
Measurement of heroin and its metabolites by isotope-dilution electron-impact mass spectrometry.
Bruce A. Goldberger, W. Darwin, Terrance M. Grant, Andrew C. Allen +2 more
1993Clinical Chemistry87 citations
Semantic Scholar
Concentration of cocaine and metabolites in plasma of humans following intravenous administration and smoking of cocaine.
Daniel S. Isenschmid, Marian W. Fischman, R. Foltin, Y. Caplan
1992Journal of Analytical Toxicology86 citations
Semantic Scholar
Oxycodone involvement in drug abuse deaths. II. Evidence for toxic multiple drug-drug interactions.
E. Cone, R. Fant, J. Rohay, Y. Caplan +3 more
2004Journal of Analytical Toxicology85 citations Open access
Semantic Scholar
Urine drug testing of chronic pain patients: licit and illicit drug patterns.
E. Cone, Y. Caplan, D. L. Black, T. Robert +1 more
2008Journal of Analytical Toxicology82 citations
Semantic Scholar
Evidence of morphine metabolism to hydromorphone in pain patients chronically treated with morphine.
E. Cone, H. Heit, Y. Caplan, D. Gourlay
2006Journal of Analytical Toxicology77 citations
Semantic Scholar
Vitreous humor in the evaluation of postmortem blood ethanol concentrations.
Y. Caplan, Barry S. Levine
1990Journal of Analytical Toxicology72 citations
Semantic Scholar
Interpretation of low postmortem concentrations of ethanol.
Barry Levine, Michael L. Smith, J. Smialek, Y. Caplan
1993Journal of Forensic Sciences62 citations
Semantic Scholar
A method for the simultaneous determination of cocaine, benzoylecgonine, and ecgonine methyl ester in blood and urine using GC/EIMS with derivatization to produce high mass molecular ions.
D. Isenschmid, Barry S. Levine, Y. Caplan
1988Journal of Analytical Toxicology58 citations
Semantic Scholar
Oral fluid drug testing of chronic pain patients. I. Positive prevalence rates of licit and illicit drugs.
R. Heltsley, Anne Z. DePriest, D. L. Black, T. Robert +4 more
2011Journal of Analytical Toxicology55 citations Open access
Semantic Scholar
Fatality resulting from methylphenidate overdose.
Barry S. Levine, Y. Caplan, Gregory Kauffman
1986Journal of Analytical Toxicology52 citations
Semantic Scholar
Oral fluid drug testing of chronic pain patients. II. Comparison of paired oral fluid and urine specimens.
R. Heltsley, Anne Z. DePriest, D. L. Black, D. Crouch +5 more
2012Journal of Analytical Toxicology51 citations
Semantic Scholar
Drug testing in alternate biological specimens
A. Jenkins, Y. Caplan
200851 citations Open access
Semantic Scholar
Urine drug testing of chronic pain patients. II. Prevalence patterns of prescription opiates and metabolites.
R. Heltsley, Anne Zichterman, D. L. Black, B. Cawthon +4 more
2010Journal of Analytical Toxicology49 citations
Semantic Scholar
Detection of methadone, methadone metabolites, and other illicit drugs of abuse in hair of methadone-treatment subjects.
Bruce A. Goldberger, Abeer G. Darraj, Y. Caplan, E. J. Cone
1998Journal of Analytical Toxicology44 citations
Semantic Scholar
Cocaine fatality: an unexplained blood concentration in a fatal overdose.
F. Peretti, Daniel S. Isenschmid, Barry S. Levine, Y. Caplan +1 more
1990Forensic Science International44 citations
Semantic Scholar
Urine Toxicology Testing in Chronic Pain Management
E. Cone, Y. Caplan
2009Postgraduate medicine42 citations
Semantic Scholar
Evidence that morphine is metabolized to hydromorphone but not to oxymorphone.
E. Cone, Y. Caplan, F. Moser, T. Robert +1 more
2008Journal of Analytical Toxicology38 citations Open access
Semantic Scholar
Urine testing for norcodeine, norhydrocodone, and noroxycodone facilitates interpretation and reduces false negatives.
E. Cone, Anne Zichterman, R. Heltsley, D. L. Black +4 more
2010Forensic Science International34 citations
Semantic Scholar
A fentanyl fatality involving midazolam.
Barry S. Levine, J. Goodin, Y. Caplan
1990Forensic Science International32 citations
Semantic Scholar
Determination of fentanyl in whole blood at subnanogram concentrations by dual capillary column gas chromatography with nitrogen sensitive detectors and gas chromatography/mass spectrometry.
V. Watts, Y. Caplan
1988Journal of Analytical Toxicology31 citations
Semantic Scholar
Detection of cocaine and its metabolites in human amniotic fluid.
M. Ripple, Bruce A. Goldberger, Y. Caplan, M. Blitzer +1 more
1992Journal of Analytical Toxicology29 citations Open access
Semantic Scholar
Effect of glutaraldehyde (UrinAid) on detection of abused drugs in urine by immunoassay.
B. Goldberger, Y. Caplan
1994Clinical Chemistry27 citations
Semantic Scholar
The role of ecgonine methyl ester in the interpretation of cocaine concentrations in postmortem blood.
D. Isenschmid, Barry S. Levine, Y. Caplan
1992Journal of Analytical Toxicology27 citations
Semantic Scholar
Evaluation of the Coat-A-Count 125I fentanyl RIA: comparison of 125I RIA and GC/MS-SIM for quantification of fentanyl in case urine specimens.
V. Watts, Y. Caplan
1990Journal of Analytical Toxicology26 citations
Semantic Scholar
The defined HHS/DOT substituted urine criteria validated through a controlled hydration study.
K. Edgell, Y. Caplan, Leon R Glass, J. D. Cook
2002Journal of Analytical Toxicology25 citations Open access
Semantic Scholar
Bupropion and alcohol fatal intoxication: case report.
Vera Ramcharitar, Barry S. Levine, Bruce A. Goldberger, Y. Caplan
1992Forensic Science International24 citations
Semantic Scholar
Urine drug testing of chronic pain patients. III. Normetabolites as biomarkers of synthetic opioid use.
Anne Z. DePriest, R. Heltsley, D. L. Black, B. Cawthon +4 more
2010Journal of Analytical Toxicology23 citations
Semantic Scholar
Fluorescence polarization immunoassay evaluated for screening for amphetamine and methamphetamine in urine.
Y. Caplan, B. Levine, Bruce A. Goldberger
1987Clinical Chemistry23 citations
Semantic Scholar
Carbon monoxide analysis: a comparison of two co-oximeters and headspace gas chromatography.
A. Costantino, Jongsei Park, Y. Caplan
1986Journal of Analytical Toxicology23 citations
Semantic Scholar
The analysis of ethanol in serum, blood, and urine: a comparison of the TDx REA ethanol assay with gas chromatography.
Y. Caplan, Barry S. Levine
1986Journal of Analytical Toxicology23 citations
Semantic Scholar
Infrared quantitative evidential breath-alcohol analyzers: in vitro accuracy and precision studies.
Bruce A. Goldberger, Y. Caplan
1986Journal of Forensic Sciences23 citations
Semantic Scholar
Garriott's Medicolegal Aspects of Alcohol
Y. Caplan, B. Goldberger, Erik H. Aguayo
201422 citations
Semantic Scholar
Two fatalities involving haloperidol.
Barry S. Levine, Sze-Chung Wu, Bruce A. Goldberger, Y. Caplan
1991Journal of Analytical Toxicology21 citations
Semantic Scholar
Urine drug testing of chronic pain patients. IV. prevalence of gabapentin and pregabalin.
R. Heltsley, Anne Z. DePriest, D. L. Black, T. Robert +2 more
2011Journal of Analytical Toxicology19 citations
Semantic Scholar
The storage of forensic urine drug specimens as dry stains: recovery and stability.
Ira S. DuBey, Y. Caplan
1996Journal of Forensic Sciences19 citations
Semantic Scholar
Oxycodone involvement in drug abuse deaths. II. Evidence for toxic multiple drug-drug interactions.
E. Cone, R. Fant, J. Rohay, Y. Caplan +3 more
2004Journal of Analytical Toxicology18 citations
Semantic Scholar
Chloral hydrate: unusually high concentrations in a fatal overdose.
Barry S. Levine, Jong-Shin Park, T. D. Smith, Y. Caplan
1985Journal of Analytical Toxicology18 citations
Semantic Scholar
Application of the Abbott TDx lidocaine, phenytoin, and phenobarbital assays to postmortem blood specimens.
Y. Caplan, Barry S. Levine
1988Journal of Analytical Toxicology17 citations
Semantic Scholar
Serial capillary gas chromatography/Fourier transform infrared spectrometry/mass spectrometry (GC/IR/MS): qualitative and quantitative analysis of amphetamine, methamphetamine, and related analogues in human urine.
Gennady E. Platoff, David W. Hill, Thomas R. Koch, Y. Caplan
1992Journal of Analytical Toxicology16 citations
Semantic Scholar
Fluoxetine and violent death in Maryland.
D. L. Frankenfield, Susan Pardee Baker, W. Lange, Y. Caplan +1 more
1994Forensic Science International15 citations Open access
Semantic Scholar
Abbott phencyclidine and barbiturates abused drug assays: evaluation and comparison of ADx FPIA, TDx FPIA, EMIT, and GC/MS methods.
Y. Caplan, B. Levine
1989Journal of Analytical Toxicology15 citations
Semantic Scholar

Frequent co-authors

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E. Cone×14
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E. Cone — researcher profile on SciRah
Bruce A. Goldberger×10
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T. Robert×9
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D. L. Black×9
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Barry S. Levine

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F. Moser — researcher profile on SciRah

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R. Heltsley — researcher profile on SciRah

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E. J. Cone — researcher profile on SciRah

Barry S. Levine×4

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Barry S. Levine — researcher profile on SciRah

Anne Z. DePriest×4

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Anne Z. DePriest — researcher profile on SciRah

D. Isenschmid×3

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D. Isenschmid — researcher profile on SciRah

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J. Smialek — researcher profile on SciRah