1-14 of 14
RA de Zeeuw
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Articles

Solid Phase Extraction of Morphine from Whole Blood by Means of Bond Elut Certify Columns

X-H Chen, B.S., ALC Hommerson, PGM Zweipfenning, R.Ph., J-P Franke, Ph.D., CW Harmen-Boverhof, K Ensing, Ph.D., RA de Zeeuw, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. May 1993, 38(3): 668–676.
https://doi.org/10.1520/JFS13454J
Published Online: May 1, 1993
View Article titled, Solid Phase Extraction of Morphine from Whole Blood by Means of Bond Elut Certify Columns
Open the PDF for Solid Phase Extraction of Morphine from Whole Blood by Means of Bond Elut Certify Columns in another window
Journal Articles

Letters to the Editor

Robert Roth, M.D., J Beck, RA de Zeeuw, Ph.D., EA Craig, M.S., DH Ubelaker, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Editorial
J. Forensic Sci.. November 1992, 37(6): 1437–1444.
https://doi.org/10.1520/JFS13336J
Published Online: November 1, 1992
View Article titled, Letters to the Editor
Open the PDF for Letters to the Editor in another window
Journal Articles

Impact of Tropical Conditions on Thin Layer Chromatography in Analytical Toxicology: High Temperatures and Moderate Humidities

RA de Zeeuw, Ph.D., JP Franke, Ph.D., E Dik, Drs, W ten Dolle, Drs, BL Kam, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. July 1992, 37(4): 984–990.
https://doi.org/10.1520/JFS13283J
Published Online: July 1, 1992
View Article titled, Impact of Tropical Conditions on Thin Layer Chromatography in Analytical Toxicology: High Temperatures and Moderate Humidities
Open the PDF for Impact of Tropical Conditions on Thin Layer Chromatography in Analytical Toxicology: High Temperatures and Moderate Humidities in another window
Journal Articles

Application of Empore C-8 Extraction Disks for Screening Urine in Systematic Toxicological Analysis

K Ensing, Ph.D., JP Franke, Ph.D., A Temmink, M.Sc, X-H Chen, M.Sc., RA de Zeeuw, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. March 1992, 37(2): 460–466.
https://doi.org/10.1520/JFS13255J
Published Online: March 1, 1992
View Article titled, Application of Empore C-8 Extraction Disks for Screening Urine in Systematic Toxicological Analysis
Open the PDF for Application of Empore C-8 Extraction Disks for Screening Urine in Systematic Toxicological Analysis in another window
Journal Articles

A Rapid Gas Chromatographic Method for the Fingerprinting of Illicit Cocaine Samples

JG Ensing, Ph.D., C Racamy, M.Sc., RA de Zeeuw, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. March 1992, 37(2): 446–459.
https://doi.org/10.1520/JFS13254J
Published Online: March 1, 1992
View Article titled, A Rapid Gas Chromatographic Method for the Fingerprinting of Illicit Cocaine Samples
Open the PDF for A Rapid Gas Chromatographic Method for the Fingerprinting of Illicit Cocaine Samples in another window
Journal Articles

A Single-Column Procedure on Bond Elut Certify for Systematic Toxicological Analysis of Drugs in Plasma and Urine

X-H Chen, B.S., J Wijsbeek, J-P Franke, Ph.D., RA de Zeeuw, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. January 1992, 37(1): 61–71.
https://doi.org/10.1520/JFS13211J
Published Online: January 1, 1992
View Article titled, A Single-Column Procedure on Bond Elut Certify for Systematic Toxicological Analysis of Drugs in Plasma and Urine
Open the PDF for A Single-Column Procedure on Bond Elut Certify for Systematic Toxicological Analysis of Drugs in Plasma and Urine in another window
Journal Articles

Detection, Isolation, and Identification of Truxillines in Illicit Cocaine by Means of Thin-Layer Chromatography and Mass Spectrometry

JG Ensing, Ph.D., RA de Zeeuw, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. September 1991, 36(5): 1299–1311.
https://doi.org/10.1520/JFS13153J
Published Online: September 1, 1991
View Article titled, Detection, Isolation, and Identification of Truxillines in Illicit Cocaine by Means of Thin-Layer Chromatography and Mass Spectrometry
Open the PDF for Detection, Isolation, and Identification of Truxillines in Illicit Cocaine by Means of Thin-Layer Chromatography and Mass Spectrometry in another window
Journal Articles

Combined Information from Retardation Factor (Rf) Values and Color Reactions on the Plate Greatly Enhances the Identification Power of Thin-Layer Chromatography in Systematic Toxicological Analysis

HFJ Hegge, Ph.D., J Piet Franke, Ph.D., RA de Zeeuw, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. July 1991, 36(4): 1094–1101.
https://doi.org/10.1520/JFS13125J
Published Online: July 1, 1991
View Article titled, Combined Information from Retardation Factor (Rf) Values and Color Reactions on the Plate Greatly Enhances the Identification Power of Thin-Layer Chromatography in Systematic Toxicological Analysis
Open the PDF for Combined Information from Retardation Factor (Rf) Values and Color Reactions on the Plate Greatly Enhances the Identification Power of Thin-Layer Chromatography in Systematic Toxicological Analysis in another window
Journal Articles

Interlaboratory Reproducibility of Retention Indices in Capillary Gas Chromatography

J-P Franke, Ph.D., J Wijsbeek, RA de Zeeuw, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. July 1990, 35(4): 813–820.
https://doi.org/10.1520/JFS12893J
Published Online: July 1, 1990
View Article titled, Interlaboratory Reproducibility of Retention Indices in Capillary Gas Chromatography
Open the PDF for Interlaboratory Reproducibility of Retention Indices in Capillary Gas Chromatography in another window
Journal Articles

Letters to the Editor

M Bogusz, M.D., RA de Zeeuw, Ph.D., E Koves, J Wells, ML Fackler, Col. M.C. U.S.A., PJ Lincoln, B.Sc. Ph.D. M.R.C. Path., JH Davis, M.D., RM Golden, RPA-C, CS Hirsch, M.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Letters To The Editor
J. Forensic Sci.. July 1986, 31(3): 800–805.
https://doi.org/10.1520/JFS11089J
Published Online: July 1, 1986
View Article titled, Letters to the Editor
Open the PDF for Letters to the Editor in another window
Journal Articles

Multicenter Evaluation of Ultrafiltration, Dialysis, and Thermal Coagulation as Sample Pretreatment Methods for the Colorimetric Determination of Paraquat in Blood and Tissues

RA de Zeeuw, Ph.D., J Wijsbeek, J Piet Franke, Ph.D., M Bogusz, M.D., M Kłys, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. April 1986, 31(2): 504–510.
https://doi.org/10.1520/JFS12282J
Published Online: April 1, 1986
View Article titled, Multicenter Evaluation of Ultrafiltration, Dialysis, and Thermal Coagulation as Sample Pretreatment Methods for the Colorimetric Determination of Paraquat in Blood and Tissues
Open the PDF for Multicenter Evaluation of Ultrafiltration, Dialysis, and Thermal Coagulation as Sample Pretreatment Methods for the Colorimetric Determination of Paraquat in Blood and Tissues in another window
Journal Articles

Retrieval of Analytical Data and Substance Identification in Systematic Toxicological Analysis by the Mean List Length Approach

J-P Franke, Ph.D., RA de Zeeuw, Ph.D., PGAM Schepers, Drs.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. October 1985, 30(4): 1074–1081.
https://doi.org/10.1520/JFS11048J
Published Online: October 1, 1985
View Article titled, Retrieval of Analytical Data and Substance Identification in Systematic Toxicological Analysis by the Mean List Length Approach
Open the PDF for Retrieval of Analytical Data and Substance Identification in Systematic Toxicological Analysis by the Mean List Length Approach in another window
Journal Articles

Applicability of Capillary Gas Chromatography to Substance Identification in Toxicology by Means of Retention Indices

P Schepers, J Wijsbeek, JP Franke, Ph.D., RA de Zeeuw, Ph.D.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. January 1982, 27(1): 49–60.
https://doi.org/10.1520/JFS11450J
Published Online: January 1, 1982
View Article titled, Applicability of Capillary Gas Chromatography to Substance Identification in Toxicology by Means of Retention Indices
Open the PDF for Applicability of Capillary Gas Chromatography to Substance Identification in Toxicology by Means of Retention Indices in another window
Journal Articles

Analytical Problems with Putrefaction in a Fatal Case Involving Ergotamine and Pentazocine

RA de Zeeuw, Ph.D., FJW van Mansvelt, Drs., JE Greving, Drs.
Journal: Journal of Forensic Sciences
Publisher: ASTM International
Article Type: Research-Article
J. Forensic Sci.. July 1977, 22(3): 550–557.
https://doi.org/10.1520/JFS10626J
Published Online: July 1, 1977
View Article titled, Analytical Problems with Putrefaction in a Fatal Case Involving Ergotamine and Pentazocine
Open the PDF for Analytical Problems with Putrefaction in a Fatal Case Involving Ergotamine and Pentazocine in another window