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D. Leyden · SciRah

Researcher profile · Semantic Scholar

D. Leyden

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D. Leyden — researcher profile on SciRah

h-index: 25
Works: 141
Citations: 2,953

Most-cited papers

A surface study of cobalt-molybdena-alumina catalysts using x-ray photoelectron spectroscopy
T. A. Patterson, J. Carver, D. Leyden, D. Hercules
1976321 citations
Semantic Scholar
Structural characterization of (3-aminopropyl)triethoxysilane-modified silicas by silicon-29 and carbon-13 nuclear magnetic resonance
G. S. Caravajal, D. Leyden, G. R. Quinting, G. Maciel
1988274 citations
Semantic Scholar
The nature of organosilane to silica-surface bonding
T. G. Waddell, D. Leyden, M. DeBello
1981190 citations
Semantic Scholar
Quantitative determination of (3-aminopropyl)triethoxysilane on silica gel surface using diffuse reflectance infrared Fourier transform spectrometry
R. S. Shreedhara Murthy, D. Leyden
198692 citations
Semantic Scholar
Scientific assessment of the use of sugars as cigarette tobacco ingredients: A review of published and other publicly available studies
E. Roemer, M. Schorp, J. Piadé, J. I. Seeman +2 more
2012Critical Reviews in Toxicology79 citations Open access
Semantic Scholar
Preconcentration of certain anions using reagents immobilized via silylation
D. Leyden, G. H. Luttrell, W. Nonidez, Dennis B. Werho
197673 citations
Semantic Scholar
Ammonia-catalyzed silylation reactions of Cab-O-Sil with methoxymethylsilanes
J. Blitz, R. S. Shreedhara Murthy, D. Leyden
198765 citations
Semantic Scholar
Cabbon-13 cross polarization with magic angle spinning nuclear magnetic resonance spectroscopy of organosilanes bonded to silica surfaces
D. Leyden, D. Kendall, T. G. Waddell
198161 citations
Semantic Scholar
Fourier transform infrared spectrometry, carbon-13 nuclear magnetic resonance spectrometry, and photoacoustic spectroscopy of a silica-immobilized ligand
D. Leyden, D. Kendall, L. Burggraf, F. Pern +1 more
198256 citations
Semantic Scholar
Quantitative photoacoustic spectroscopy of intensely light-scattering thermally thick samples
L. Burggraf, D. Leyden
198153 citations
Semantic Scholar
Quantitative variable-temperature diffuse reflectance infrared Fourier transform spectrometric studies of modified silica gel samples
R. S. Shreedhara Murthy, J. Blitz, D. Leyden
198645 citations
Semantic Scholar
Photoacoustic spectroscopy study of metal-support interactions in Coγ-Al2O3 and Niγ-Al2O3 catalysts
L. Burggraf, D. Leyden, R. Chin, D. Hercules
198240 citations
Semantic Scholar
Photoacoustic studies of complexation of copper(II) with an ethylenediamine analog immobilized on silica gel
L. Burggraf, D. Kendall, D. Leyden, F. Pern
198138 citations
Semantic Scholar
Structural studies of immobilized ethylenediamine as a preconcentrating agent for molybdate and tungstate
D. Leyden, M. Steele, B. Jablonski, R. Somoano
197835 citations
Semantic Scholar
Analytical applications of NMR
D. Leyden, R. Cox
197734 citations
Semantic Scholar
Analysis of aerosols using total reflection X-ray spectrometry and industrial process monitoring using EDXRF (Energy Dispersive X-ray Fluorescence)
D. J. Leland, D. B. Bilbrey, D. Leyden, P. Wobrauschek +2 more
198731 citations
Semantic Scholar
Spectroscopic investigation of the hydrolysis of γ-glycidoxypropylsilane bound to silica surfaces
G. Bogart, D. Leyden, T. Wade, Wes A. Schafer +1 more
198926 citations
Semantic Scholar
The determination of uranium in natural waters at ppb levels by thin-film x-ray fluorescence spectrometry after coprecipitation with an iron dibenzyldithiocarbamate carrier complex
G. S. Caravajal, Kent I. Mahan, D. Leyden
198224 citations
Semantic Scholar
Preparation of Chemically Modified Cellulose Exchangers and their use for the Preconcentration of Trace Elements
W. Wegscheider, G. Knapp, D. Leyden
198124 citations
Semantic Scholar
Effect of reducing agents of pharmacological importance on the chemiluminescence of tris-(2,2'-bipyridine)ruthenium(II)
W. Nonidez, D. Leyden
197824 citations
Semantic Scholar
The contribution of dietary nicotine and dietary cotinine to salivary cotinine levels as a nicotine biomarker
B. Siegmund, D. Leyden, Edith Zikulnig, E. Leitner +3 more
200123 citations
Semantic Scholar
Comparison of Environmental Tobacco Smoke (ETS) Concentrations Generated by an Electrically Heated Cigarette Smoking System and a Conventional Cigarette
A. Tricker, M. Schorp, H-Jörg Urban, D. Leyden +7 more
200921 citations Open access
Semantic Scholar
Comparison of Transmission and Diffuse Reflectance Sampling Techniques for FT-IR Spectrometry of Silane-Modified Silica Gel
J. Blitz, R. S. Shreedhara Murthy, D. Leyden
198621 citations
Semantic Scholar
Modelling nicotine intake in smokers and snuff users using biological fluid nicotine metabolites.
C. Boswell, M. Curvall, R. Elswick, D. Leyden
2000Biomarkers20 citations
Semantic Scholar
Preconcentration and x-ray spectrometric determination of arsenic(III/V) and chromium(III/VI) in water
D. Leyden, K. Goldbach, A. Ellis
198519 citations
Semantic Scholar
Determination of metals in oil using total reflection X‐ray fluorescence spectrometry
D. B. Bilbrey, D. J. Leland, D. Leyden, P. Wobrauschek +1 more
198717 citations
Semantic Scholar
Diffuse reflectance Fourier transform IR spectroscopy
D. Leyden, R. S. Murthy
198816 citations
Semantic Scholar
Characterization and properties of dibenzo-18-crown-6 covalently bonded to silica gel
T. G. Waddell, D. Leyden
198116 citations
Semantic Scholar
Comparison of fundamental parameters programs for quantitative X-ray fluoréscence spectrometry
D. B. Bilbrey, G. Bogart, D. Leyden, A. R. Harding
198814 citations
Semantic Scholar
Distribution analysis of airborne nicotine concentrations in hospitality facilities.
M. Schorp, D. Leyden
2002Environment International13 citations
Semantic Scholar
Thermodynamic and kinetic investigation of the protonation of silica-immobilized 3-aminopropylsilane
D. J. Kelly, D. Leyden
199113 citations
Semantic Scholar
Reduced exposure evaluation of an Electrically Heated Cigarette Smoking System. Part 8: Nicotine bridging--estimating smoke constituent exposure by their relationships to both nicotine levels in mainstream cigarette smoke and in smokers.
H-Jörg Urban, A. Tricker, D. Leyden, Natasa Forte +5 more
2012Regulatory toxicology and pharmacology : RTP12 citations Open access
Semantic Scholar
Comparison of environmental tobacco smoke (ETS) concentrations generated by an electrically heated cigarette smoking system and a conventional cigarette.
A. Tricker, M. Schorp, H-Jörg Urban, D. Leyden +7 more
2009Inhalation Toxicology12 citations
Semantic Scholar
Determination of trace amounts of vanadium(IV) and (V) in water by energy-dispersive x-ray fluorescence spectrometry combined with preconcentration and separation
Kazuo Hirayama, D. Leyden
198612 citations
Semantic Scholar
Determination of wear metals in oil using energy dispersive x-ray spectrometry
Ya-Wen Liu, A. R. Harding, D. Leyden
198612 citations
Semantic Scholar
Quantitative photoacoustic spectrometry
R. S. Field, D. Leyden, R. S. Shreedhara Murthy
198611 citations
Semantic Scholar
Evaluation of methods based on acid extraction and atomic absorption spectrometry for multi-element determinations in rivers sidements
G. S. Caravajal, Kent I. Mahan, D. Goforth, D. Leyden
198311 citations
Semantic Scholar
Determination of Triglycerides on Cotton Fabrics Using Fourier Transform Attenuated Total Reflection Infrared Spectroscopy
R. S. Shreedhara Murthy, D. Leyden, J. Grime
19859 citations
Semantic Scholar
Evaluation of computer directed optimization for energy dispersive x-ray spectrometry
B. Jablonski, W. Wegscheider, D. Leyden
19799 citations
Semantic Scholar
Flow photometric monitor for uranium in carbonate solutions
B. Jablonski, D. Leyden
19788 citations
Semantic Scholar
Ligand-exchange chromatography of amino sugars and amino acids on copper-loaded silylated controlled-pore glass
Ronnie G. Masters, D. Leyden
19788 citations
Semantic Scholar
Chemically modified surfaces in science and industry : proceedings of the Chemically Modified Surfaces Symposium, Fort Collins, Colorado, June 17-19, 1987
D. Leyden, W. Collins
19887 citations
Semantic Scholar
SURFACE SPECTROSCOPIC CHARACTERIZATION OF COPPER/ALUMINA CATALYSTS
B. Strohmeier, D. Leyden, R. S. Field, D. Hercules
19857 citations
Semantic Scholar
Techniques for the Preparation of Lithium Tetraborate Fused Single and Multielement Standards
Kent I. Mahan, D. Leyden
19817 citations
Semantic Scholar
Separation of uranium from molybdenum using a diamine functional group bonded to controlled-pore glass
S. Northcott, D. Leyden
19817 citations
Semantic Scholar
Preconcentration of Uranium for X-ray Fluorescence Determination on Chemically-Modified Filters
J. Cronin, D. Leyden
19797 citations
Semantic Scholar
Determination of Uranium in Carbonate Solutions by Extraction onto a Chemically Modified Surface
B. Jablonski, D. Leyden
19777 citations
Semantic Scholar
Assessment of nicotine uptake from cigarette smoke: comparison of a colorimetric test strip (NicCheck I™) and gas chromatography/mass selective detector
H. Karnes, J. James, C. March, D. Leyden +1 more
2001Biomarkers6 citations
Semantic Scholar
Response functions for the quantitative evaluation of compromise conditions for multi-element analyses with energy-dispersive X-ray fluorescence spectrometry
W. Wegscheider, B. Jablonski, D. Leyden
19796 citations
Semantic Scholar
Chapter 10 – Determination of nicotine in pharmaceutical products and dietary sources
D. Leyden, E. Leitner, B. Siegmund
19995 citations
Semantic Scholar

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R. S. Shreedhara Murthy×6
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R. S. Shreedhara Murthy — researcher profile on SciRah
M. Schorp×5
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M. Schorp — researcher profile on SciRah
B. Jablonski×5
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L. Burggraf×4
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D. Hercules — researcher profile on SciRah

G. S. Caravajal×3

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G. S. Caravajal — researcher profile on SciRah

T. G. Waddell×3

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J. Blitz — researcher profile on SciRah

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D. Kendall — researcher profile on SciRah

D. B. Bilbrey×3

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D. B. Bilbrey — researcher profile on SciRah

Kent I. Mahan×3

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Kent I. Mahan — researcher profile on SciRah

W. Wegscheider×3

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