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J Wijsbeek
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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
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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
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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
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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
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