1. Drug screening in biological fluids the need for a systematic approach;de Zeeuw;J. Chromatogr. B,1997
2. Substance identification: the weak link in analytical toxicology;de Zeeuw;J. Chromatogr. B,2004
3. How to approach substance identification in qualitative bioanalysis;Hartstra;J. Chromatogr. B,2000
4. Thin-layer Chromatographic Rf Values of Toxicologically Relevant Substances on Standardized Systems;de Zeeuw,1992
5. Gas Chromatographic Retention Indices of Toxicologically Relevant Substances on Packed or Capillary Columns with Dimethylsilicone Stationary Phases;de Zeeuw,1992