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Scientific articles:

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  2008

 

  1. Comparison of matrix effects in HPLC-MS/MS and UPLC-MS/MS analysis of nine basic pharmaceuticals in surface waters. J.C. Van De Steene and W.E. Lambert. J. Am. Soc. Mass Spectrom. 2008, 19:713-718.

  2. Optimization of a liquid chromatographic separation for the simultaneous determination of four anthracyclines and their respective 13-S-dihydro metabolites.  K.E. Maudens, C.P. Stove and W.E. Lambert. J. Sep. Sci. 2008, 31: 1042-1049.

  3. Validation of a solid-phase extraction and liquid chromatography- electrospray tandem mass spectrometric method for the determination of nine basic pharmaceuticals in wastewater and surface water samples. J. C. Van De Steene and W.E. Lambert. J. Chrom. A 2008, 1182:153-160.

 

  2007

 

  1. Validation and comparison of a gas chromatographic-mass spectrometric method in electron ionization (EI) and positive chemical ionization mode (PICI) for the simultaneous determination of 13 antidepressants and their active metabolites in plasma. S.M.R. Wille, P. Van Hee, H.M. Neels, C.H. Van Peteghem and W.E.E. Lambert. J. Chromatogr. A 2007, 1176:236-245.

  2. Folate fortification of rice by metabolic engineering. S. Storozhenko, V. De Brouwer, M. Volckaert, O. Navarrete, D. Blancquaert, G.-F. Zhang, W. Lambert and D. Van Der Straeten. Nature Biotechnology 2007, 25:1277-1279.

  3. pH stability of individual folates during critical sample preparation steps in prevision of the analysis of plant folates. V. De Brouwer, G.-F. Zhang, S. Storozhenko, D. Van Der Straeten, and W. Lambert. Phytochem. Anal. 2007, 18:496-508.

  4. Regulation of one-carbon metabolism in Arabidopsis: the N-terminal regulatory domain of cystathionine у-synthase is cleaved in response to folate starvation. K. Loizeau, B. Gambonnet, G.-F. Zhang, G. Curien, S. Jabrin, D. Van Der Straeten, W.E. Lambert, F. Rébeillé, and S. Ravanel. Plant Physiol. 2007, 145: 491-503.[Full Text]

  5. Recent developments in extraction procedures relevant to analytical toxicology. S.M.R. Wille and W.E.E Lambert. Anal. Bioanal. Chem.2007, 388: 1381-1391.[Full Text]

  6. Postmortem distribution of 3,4-methylenedioxy-N,N-dimethyl-amphetamine (MDDM or MDDA) in a fatal MDMA overdose. E.A. De Letter, W.E. Lambert, M.-P.L.A. Bouche, J.A.C.M. Cordonnier, J.F. Van Bocxlaer, and M.H.A. Piette. Int. J. Legal Med. 2007, 121: 303-307.[Full Text]

  7. Aconitine involvement in an unusual homicide case. A.A. Van Landeghem, E.A. De Letter, W.E. Lambert, C.H. Van Peteghem and M.H.A. Piette. Int. J. Legal Med. 2007, 121: 214-219.[Full Text]

  8. Cytosolic hydroxymethyldihydropterin pyrophosphokinase/dihydropteroate synthase from Arabidopsis thaliana. A specific role in early development and stress response. S. Storozhenko, O. Navarrete, S. Ravanel, V. De Brouwer, P. Chaerle, G.F. Zhang, O. Bastien, W. Lambert, F. Rébeillé, D. Van Der Straeten.  J. Biol. Chem. 2007, 282: 10749-10761. [Full Text]

  9. Traces of phosgene in chloroform: consequences for extraction of anthracyclines. Kristof E. Maudens, Sarah M.R. Wille and Willy E. Lambert. J. Chrom. B 2007, 848: 384-390. [Full Text]

  10. Oral fluid as an alternative matrix to monitor opiate and cocaine use in substance-abuse treatment patients. R. Dams, R.E. Choo, W.E. Lambert, H. Jones, and M.A. Huestis. Drug Alc. Dep. 2007, 87: 258-267.[Full Text]

 

  2006

  1. Tackling matrix effects during development of a liquid chromatographic-electrospray ionisation tandem mass spectrometric analysis of nine basic pharmaceuticals in aqueous environmental samples. Jet C. Van De Steene, Kjell A. Mortier and Willy E. Lambert. J. Chrom A 2006, 1123: 71-81. [Full Text]

  2. Postmorten distribution of sildenafil in histological material. Paul Van Hee, Hugo Neels, Willy Lambert, Vera Coucke, Mireille Dedoncker. J. Anal Toxicol. 2006, 30 (6):403-404.

  3. Determination of unbound docetaxel and paclitaxel in plasma by ultrafiltration and liquid chromatography-tandem mass spectrometry. Kjell A. Mortier and Willy E. Lambert. J. Chrom. A 2006, 1108: 195-201. [Full Text]

  4. Amphetamines as potential inducers of fatalities: a review in the district of Ghent from 1976-2004. E.A. De Letter, M.H.A Piette, W.E. Lambert, and J. Cordonnier. Med. Sci. Law 2006, 46: 37-65.

 

  2005

  1. Development of a solid phase extraction for 13 'new' generation antidepressants and their active metabolites for gas chromatographic- mass spectrometric analysis. Sarah M.R. Wille, Kristof E. Maudens, Carlos H. Van Peteghem, Willy E. Lambert. J. Chrom. A 2005, 1098: 19-29.[Full Text]

  2. Reference range for micronutrients and nutritional marker proteins in cord blood of neonates appropriated for gestational ages. A. Galinier, B. Periquet, W. Lambert, J. Garcia, C. Assouline, M. Rolland and J.-P. Thouvenot. Early Hum. Dev. 2005, 81, 583-593.[Full Text]

  3. Development and validation of a liquid chromatography-tandem mass spectrometry assay for the quantification of docetaxel and paclitaxel in human plasma and oral fluid. Mortier KA, Renard V, Verstraete AG, Van Gussem A, Van Belle S, Lambert WE.  Analytical Chemistry 2005, 77; 4677. [Abstract]

  4. Folate enhancement in staple crops by metabolic engineering. Storozhenko S., Ravanel S., Zhang G.F., Rébeillé F., Lambert W., and Van Der Straeten D. Trends in Food Sci. & Technol., 2005 16: 271-281.

  5. Investigation of the extraction behavior of the main monoglutamate folates from spinach by liquid chromatography - electrospray ionization tandem mass spectrometry. Zhang G.F., Storozhenko S., Van Der Straeten D., Lambert W. J. Chrom. A, 2005 1078:59-66.

  6. Free and total para-aminobenzoic acid analysis in plants with high-performance liquid chromatography/tandem mass spectrometry.  Zhang GF, Mortier KA, Storozhenko S, Van De Steene J, Van Der Straeten D, Lambert WE. Rapid Commun. Mass Spectrom. 2005,19 (8): 963-969. [Full Text]

 2004                                                                                                  

  1. Optimization of solid-phase extraction for a liquid chromatographic-tandem mass spectrometric general unknown screening procedure by means of computational techniques. Tineke N. Decaestecker, Willy E. Lambert, Carlos H. Van Peteghem, Dieter Deforce and Jan F. Van Bocxlaer. J. Chrom A. 2004, 1056; 57-65. [Full Text]

  2. The determination of cocaine, benzoylecgonine, and cocaethylene in small-volume oral fluid samples by liquid-chromatography-quadrupole time-of-flight mass spectrometry. Clauwaert K., Decaestecker T., Mortier K., Lambert W., Deforce D., Van Peteghem C., and Van Bocxlaer J. J. Anal. Toxicol., 28:655-659. [Abstract]

  3. Rapid characterization of oligonucleotides by capillary liquid chromatography-nano electrospray quadrupole time-of-flight mass spectrometry. Willems AV, Deforce DL, Lambert WE, Van Peteghem CH, Van Bocxlaer JF. J. Chrom. A 2004, 1052 (1-2): 93-101. [Full Text].

  4. Analysis of gamma-hydroxy butyric acid, DL-lactic acid, glycolic acid, ethylene glycol and other glycols in body fluids by a direct injection gas chromatography mass spectrometry assay for wide use. Van Hee P, Neels H, de Doncker M, Vrydags N, Schatteman K, Uyttenbroeck W, Hamers N, Himpe D, Lambert W. Clin. Chem. Lab. Med., 42: 1341-1345. [Full Text]

  5. Therapeutic drug monitoring of old and newer anti-epileptic drugs. Neels HM, Sierens AC, Naelaerts K, Scharpe SL, Hatfield GM, Lambert WE. Clin. Chem. Lab. Med. 2004, 42 (11): 1228-1255. [Full Text]

  6. Therapeutic drug monitoring in clinical toxicology: current strategies, thoughts and views on the future. Lambert W. and Neels H. Clin. Chem. Lab. Med., 42: 1203. [Full text]

  7. Quantitative analysis of twelve sulfonamides in honey after acidic hydrolysis by high-performance liquid chromatography with post-column derivatization and fluorescence detection. Kristof E. Maudens, Guo-Fang Zhang, Willy E. Lambert. J Chrom A. 2004, 1047;   85-92. [Full Text]

  8. Phenmetrazine or ephedrine? Fooled by library search. Sarah M.R. Wille, Willy E.E. Lambert.  J Chrom A. 2004, 1045; 259-262.[Full text]

  9. Enhanced method performance due to a shorter chromatographic run-time in a liquid chromatography-tandem mass spectrometry assay for paclitaxel.   Kjell A. Mortier, Alain G. Verstraete, Guo-Fang Zhang, Willy E. Lambert.  J Chrom A. 2004, 1041; 235-238. [Full Text]

  10. Volatile substance abuse- post-mortem diagnosis. Sarah M.R. Wille, Willy E.E. Lambert. Forensic Sci. Int. 2004, 142; 135-156. [Full Text]

  11. Interpretation of a 3,4-methylenedioxymethamphetamine (MDMA) blood level: discussion by means of a distribution study in two fatalities. De Letter EA, Bouche MPLA, Van Bocxlaer JF, Lambert WE, Piette MHA. Forensic Sci. Int. 141 (2-3): 85-90.[Full Text]

  12. Adduct formation in quantitative bioanalysis: effect of ionization conditions on paclitaxel. Mortier KA, Zhang GF, Van Peteghem CH, Lambert WE. J. Am. Soc. Mass Spectrom. 2004, 15; 585-92  [Full text]

  13. Countering matrix effects in environmental liquid chromatography–electrospray ionization tandem mass spectrometry water analysis for endocrine disrupting chemicals. Tom Benijts, Riet Dams, Willy Lambert and André De Leenheer. J Chrom A. 2004, 1029, p153-159. [Full text]

  14. Analysis of Multiple Endocrine Disruptors in Environmental Waters via Wide-Spectrum Solid-Phase Extraction and Dual-Polarity Ionization LC-Ion Trap-MS/MS.  Benijts T, Lambert W, Leenheer AP. Anal. Chem. 2004 1;76(3):704 [Abstract].

 

  2003

  1. Determination of Total Folate in Plant Material by Chemical Conversion into para-Aminobenzoic Acid Followed by High Performance Liquid Chromatography Combined with On-Line Postcolumn Derivatization and Fluorescence Detection. Zhang GF, Maudens KE, Storozhenko S, Mortier KA, Van Der Straeten D, Lambert WE. J. Agric. Food Chem. 2003 51; 7872-8 [Abstract]. 

  2. Longitudinal study on the prevalence of benzodiazepine (mis)use in a prison: importance of the analytical strategy. Borrey D, Meyer E, Duchateau L, Lambert W, Van Peteghem C, Leenheer AP. Addiction. 2003;98(10):1427-32.[Abstract]. 

  3. Matrix effect in bio-analysis of illicit drugs with LC-MS/MS: influence of ionization type, sample preparation, and biofluids. R. Dams, M.A. Huestis, W.E. Lambert, C.M. Murphy. J. Am. Soc. Mass Spectrom. 2003;14:1290-94. [Full text]

  4. Sonic spray ionization applied to liquid chromatography/mass spectrometry analysis of endocrine-disrupting chemicals in environmental water samples. Benijts T, Gunther W, Lambert W, Leenheer AP. Rapid Commun Mass Spectrom. 2003;17(16):1866-72[Abstract].

  5. Stir bar sorptive extraction-thermal desorption-capillarry GC-MS for profiling and target compound analysis of pharmaceutical drugs in urine. Tienpont, David F, Benijts T, and Sandra P AP. J Pharm. Biomed. Analysis. 2003;32:569-579 [Full text].(co-operation with RIC)

  6. CASE REPORT: Fatality Due To Combined Use of the Designer Drugs MDMA and PMA: A Distribution Study R. Dams, E.A. De Letter, K.A. Mortier, J.A. Cordonnier, W.E. Lambert, M.H.A. Piette, S. Van Calenbergh, and A.P. De Leenheer. J Anal. Toxicol.2003;27 (5): 318-322 [Abstract][Full text].

  7. LC-atmospheric pressure chemical ionization-MS/ MS analysis of multiple illicit drugs, methadone, and their metabolites in oral fluid following protein precipitation. Dams R, Murphy CM, Choo RE, Lambert WE, De Leenheer AP, Huestis MA. Anal Chem. 2003,  15;75(4):798-804. [Abstract].

  8. Urine drug testing for opioids, cocaine, and metabolites by direct injection liquid chromatography/tandem mass spectrometry. Dams R, Murphy CM, Lambert WE,  Huestis MA. Rapid Commun Mass Spectrom. 2003;17(14):1665-70 [Abstract].

  9. Immunohistochemical demonstration of the amphetamine derivatives 3,4-methylenedioxy methamphetamine (MDMA) and 3,4-methylenedioxy amphetamine (MDA) in human post-mortem brain tissues and the pituitary gland. De Letter EA, Espeel MF, Craeymeersch ME, Lambert WE, Clauwaert KM, Dams R, Mortier KA, Piette MH. Int J Legal Med. 2003 Feb;117(1):2-9.[Abstract].

  10. Exact mass measurement of product ions for the structural confirmation and identification of unknown compounds using a quadrupole time-of-flight spectrometer: a simplified approach using combined tandem mass spectrometric functions. Clauwaert K, Vande Casteele S, Sinnaeve B, Deforce D, Lambert W, Van Peteghem C, Van Bocxlaer J. Rapid Commun Mass Spectrom. 2003;17(13):1443-8.[Abstract].

  11. Comment on determination of glycols in biological specimens by gas chromatography-mass spectrometry. Van hee P, De Doncker M, Vrydags N, Schatteman K, Uyttenbroeck W, Lambert W, Neels H. J Anal Toxicol. 2003 Apr;27(3):173-4; author reply 174. No abstract available.

  12. Analysis of flecainide and two metabolites in biological specimens by HPLC: application to a fatal intoxication. Benijts T, Borrey D, Lambert WE, De Letter EA, Piette MH, Van Peteghem C, De Leenheer AP. J Anal Toxicol. 2003 Jan-Feb;27(1):47-52. [Abstract] [Full text].

  2002

  1. Analysis of benzo[a]pyrene diol epoxide-DNA adducts by capillary zone electrophoresis- electrospray ionization-mass spectrometry in conjunction with sample stacking. Willems AV, Deforce DL, Van Den Eeckhout EG, Lambert WE, Van Peteghem CH, De Leenheer AP, Van Bocxlaer JF. Electrophoresis. 2002 Dec;23(24):4092-103 [Abstract].

  2. Enzymatic hydrolysis improves the sensitivity of emit screening for urinary benzodiazepines. Borrey D, Meyer E, Duchateau L, Lambert W, Van Peteghem C, De Leenheer A. Clin. Chem., 48, 2047 (2002).[Full Text].

  3. Simultaneous, quantitative determination of opiates, amphetamines, cocaine and benzoylecgonine in oral fluid by liquid chromatography quadrupole time-of-flight mass spectrometry. Mortier K., Maudens K, Lambert W., Clauwaert K., Van Bocxlaer J., Deforce D., Van Peteghem C., De Leenheer A. Journal of Chromatography B., 779, 321 (2002). [Abstract] [Full Text]

  4. Sonic Spray Ionization Technology: Performance Study and Application to a LC/MS Analysis on a Monolithic Silica Column for Heroin Impurity Profiling. Riet Dams, Tom Benijts, Wolfgang Günther, Willy Lambert, and André De Leenheer. Anal. Chem., 74, 3206-3212 (2002).[Abstract]

  5. Analysis of estrogenic contaminants in river water using liquid chromatography coupled to ion trap based mass spectrometry. Tom Benijts, Riet Dams, Wolfgang Günther, Willy Lambert, André De Leenheer. Rapid Commun. Mass Spectrom., 16, 1358 (2002) [Abstract]

  6. Post-mortem redistribution of 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy") in the rabbit. Part two: Post-mortem infusion in trachea or stomach. E.A. De Letter, K.M. Clauwaert, F. M. Belpaire, W.E. Lambert, J.F. Van Bocxlaer, and M.H.A. Piette.Int. J. Legal Med. 116, 225 (2002).[Abstract]

  7. Post-mortem redistribution of 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy") in the rabbit. Part one: Experimental approach after in vivo intravenous infusion. E.A. De Letter, K.M. Clauwaert, F. M. Belpaire, W.E. Lambert, J.F. Van Bocxlaer, and M.H.A. Piette.  Int. J. Legal Med. 116, 216 (2002).[Abstract]

  8. Simultaneous determination of in total 17 opium alkaloids and opioids in blood and urine by fast liquid chromatography-diode-array detection-fluorescence detection, after solid-phase extraction. R. Dams , T. Benijts, W.E. Lambert , A.P. De Leenheer.  J. Chromatogr. B, 773, 53 (2002) [Abstract]

  9. Influence of the eluent composition on the ionization efficiency for morphine of pneumatically assisted electrospray, atmospheric-pressure chemical ionization and sonic spray. R. Dams, T. Benijts, W. Günther, W. Lambert, A. De Leenheer.  Rapid Commun. Mass Spectrom., 16, 1072 (2002). [Abstract]

  10. Determination of paramethoxyamphetamine and other amphetamine-related designer drugs by liquid chromatography/sonic spray ionization mass spectrometry. K.A. Mortier, R. Dams, W.E. Lambert, E.A. De Letter, S. Van Calenbergh, A.P. De Leenheer.  Rapid Commun. Mass. Spectrom., 16, 865 (2002). [Abstract]

  11. Distribution study of 3,4-methylenedioxymethamphetamine and 3,4-methylenedioxyamphetamine in a fatal overdose. De Letter EA, Clauwaert KM, Lambert WE, Van Bocxlaer JF, De Leenheer AP, Piette MHA. J. Anal. Toxicol., 26, 113 (2002). [Abstract]

  12. Quantitative determination of n-propane, iso-butane, and n-butane by headspace GC-MS in intoxications by inhalation of lighter fluid. Bouche MPLA, Lambert WE, Van Bocxlaer JFP, et al.  J. Anal. Toxicol., 26, 35-42 (2002) [abstract]

  2001 

  1. A fatal case of moclobemide – citalopram intoxication. (reply to a letter to the Editor). R. Dams, T.H.P. Benijts, W.E. Lambert, J.F. Van Bocxlaer, C. Van Peteghem, A.P. De Leenheer , and D. Van Varenbergh. J. Anal. Toxicol., 25, 717 (2001). 

  2. Fatal 4-MTA intoxication : development of a liquid chromatographic – tandem mass spectrometric assay for multiple matrices. T. Decaestecker, E. De Letter, K. Clauwaert, M.P. Bouche, W. Lambert, J. Van Bocxlaer, M. Piette, E. Van den Eeckhout, C. Van Peteghem, and A. De Leenheer. J. Anal. Toxicol., 25, 705-710 (2001). [Abstract]

  3. Heroin impurity profiling : trends throughout a decade of experimenting. R. Dams, T. Benijts, W.E. Lambert, D.L. Massart, and A.P. De Leenheer.  Forensic Sci. Int., 123, 81-88 (2001). [Abstract]

  4. Simultaneous determination of fifteen low-dosed benzodiazepines in human urine by solid-phase extraction and gas chromatography-mass spectrometry. D. Borrey, E. Meyer, W. Lambert, C. Van Peteghem, and A.P. De Leenheer.  J. Chromatogr. B, 765, 187-197 (2001). [Abstract]

  5. Pitfalls associated with liquid chromato-graphy/electrospray tandem mass spectrometry in quantitative bioanalysis of drugs of abuse in saliva. K.A. Mortier, K.M. Clauwaert, W.E. Lambert, J.F. Van Bocxlaer, E.G. Van den Eeckhout, C.H. Van Peteghem, and A.P. De Leenheer.  Rapid Commun. Mass. Spectrom., 15, 1773-1775 (2001).

  6. Stir bar sorptive extraction-thermal desorption-capillary gas chromatography-mass spectrometry applied to the analysis of polychlorinated biphenyls in human sperm. T. Benijts, J. Vercammen, R. Dams, H.P. Tuan, W. Lambert, and P. Sandra.  J. Chromatogr. B, 755, 137-142 (2001). Medline abstract

  7. A fatal case of serotonin syndrome after combined moclobemide-citalopram intoxication. R. Dams, T.H.P. Benijts, W.E. Lambert, J.F. Van Bocxlaer, D. Van Varenbergh, C. Van Peteghem, and A.P. De Leenheer.  J. Anal. Toxicol., 25, 147-151 (2001).Medline abstract

  8. Sensitive gas chromatographic-mass spectrometric screening of acetylated benzodiazepines. D. Borrey, E. Meyer, W. Lambert, S. Van Calenbergh, C. Van Peteghem, and A.P. De Leenheer.  J. Chromatogr. A, 910, 105-118 (2001). Medline abstract

  2000

  1. E.A. De Letter, P. De Paepe, K.M. Clauwaert, F.M. Belpaire, W.E. Lambert, J.F. Van Bocxlaer, and M.H.A. Piette. Is vitreous humour useful for the interpretation of 3,4-methylenedioxymethamphetamine (MDMA) blood levels? Experimental approach with rabbits. Int. J. Legal Med., 114, 29-35 (2000). Medline abstract

  2. K.M. Clauwaert, J.F. Van Bocxlaer, E.A. De Letter, S. Van Calenbergh, W.E. Lambert, and A.P. De Leenheer. Determination of the designer drugs 3,4-methylenedioxymethamphetamine, 3,4-methylenedioxyethylamphetamine, and 3,4-methylenedioxyamphetamine with HPLC and fluorescence detection in whole blood, serum, vitreous humor and urine. Clin. Chem., 46, 1968-1977 (2000). Medline abstract

  3. R. Dams, W.E. Lambert, K.M. Clauwaert, and A.P. De Leenheer. Comparison of phenyl-type columns in the development of a fast liquid chromatographic system for eighteen opiates commonly found in forensic toxicology. J. Chromatogr. A, 896, 311-319 (2000). Medline abstract

  4. T.N. Decaestecker, K.M. Clauwaert, J.F. Van Bocxlaer, W.E. Lambert, E.G. Van den Eeckhout, C. Van Peteghem and A.P. De Leenheer. Evaluation of automated single mass spectrometry to tandem mass spectrometry function switching for comprehensive drug profiling analysis using a quadrupole TOF mass spectrometer. Rapid Commun. Mass Spectrom., 14, 1787-1792 (2000). Medline abstract

  5. J.F. Van Bocxlaer, K.M. Clauwaert, W.E. Lambert, D.L. Deforce, E.G. Van den Eeckhout, and A.P. De Leenheer. Liquid chromatography – mass spectrometry in forensic toxicology. Mass Spectrom. Rev., 19, 165-214 (2000). Medline abstract

  6. E.A. De Letter, M.H.A. Piette, W.E. Lambert and A.P. De Leenheer. Medico-legal implications of hidden thyroid dysfunction : A study of two cases. Med. Sci. Law, 40, 251-257 (2000).Medline abstract

  7. K.M. Clauwaert, J.F. Van Bocxlaer, W.E. Lambert, and A.P. De Leenheer. Segmental analysis for cocaine and metabolites by HPLC in hair of suspected drug overdose cases. For. Sci. Int., 110, 157-166 (2000).Medline abstract

  8. K. Arys, J. Van Bocxlaer, K. Clauwaert, W. Lambert, M. Piette, C. Van Peteghem and A. De Leenheer. Quantitative determination of paraquat in a fatal intoxication by HPLC-DAD following chemical reduction with sodium borohydride. J. Anal. Toxicol., 24, 116-121 (2000).Medline abstract

  1999

  1. R. Dams, W.E. Lambert, F. Comhaire and A.P. De Leenheer. Production and characterization of sulforhodamine B containing large unilamellar vesicles labeled with atrazine. Anal. Chim. Acta, 399, 185-191 (1999).

  2. K.M. Clauwaert, J.F. Van Bocxlaer, H.J. Major, J.A. Claereboudt, W.E. Lambert, E.M. Van den Eeckhout, C.H. Van Peteghem and A.P. De Leenheer. Investigation of the quantitative properties of the quadrupole orthogonal acceleration TOF mass spectrometer with electrospray ionisation using 3,4-methylenedioxymethamphetamine. Rapid Commun. Mass Spectrom., 13, 1540-1545 (1999).Medline abstract

  3. S.M. De Baere, W.E. Lambert, E.L. Esmans and A.P. De Leenheer. Identification and quantitation of despropionyl-bezitramide in postmortem samples by liquid  chromatography coupled to electro­spray ionization tandem mass spectrometry. Anal. Chem., 71, 2908-2914 (1999).Medline abstract

  1998

  1. I. Dirinck, E. Meyer, J. Van Bocxlaer, W. Lambert and A. De Leenheer. Application of gas chromatography-Fourier transform infrared spectrometry to the analysis of amphetamine    analo­gues. J. Chromatogr. A, 819, 155-159 (1998).

  2. D. Borrey, E. Meyer, W. Lambert and A.P. De Leenheer. Comparison of quadrupole and (quadru­pole) ion-trap mass-spectrometers for the analysis of benzodiazepines. J. Chromatogr. A., 819, 125-131 (1998).

  3. K.M. Clauwaert, J.F. Van Bocxlaer, W.E. Lambert, E.G. Van den Eeckhout, F. Lemière, E.L. Esmans and A.P. De Leenheer. Narrow-bore HPLC in combination with fluorescence and electro­spray mass spectrometric detection for the analysis of cocaine and  metabolites in human hair. Anal. Chem., 70, 2336-2344 (1998).

  4. E. Meyer, D. Borrey, W. Lambert, C. Van Peteghem, M. Piette and A. De Leenheer. Analysis of fenthion in postmortem samples by HPLC with diode-array detection and GC-MS using solid-phase extraction. J. Anal. Toxicol., 22, 248-252 (1998).

  5. W.E. Lambert. Book review : Bioavailability and Analysis of Vitamins in Foods by G.F.M. Ball, Chapman and Hall, London. J. Chromatogr. A, 796, 405 (1998).

  6. S. De Baere, E. Meyer, W. Lambert, and A. De Leenheer. Testing for driving under the influence of ethanol : misleading results caused by ether (Letter to the Editor). J. Anal. Toxicol., 22, 78-79 (1998).

  7. S.M. De Baere, W.E. Lambert and A.P. De Leenheer.  Quantitative gas chromatographic analysis of 1-(4-piperidinyl)1,3-dihydro-2H-benzimidazole-2-one, the basic metabolite of Bezitramide (Burgodin7), in human urine. J. Anal. Toxicol., 22, 18-26 (1998).

  1997  

S.M. De Baere, W.E. Lambert, and A.P. De Leenheer. Quantitative analysis of despropionyl-bezitramide, the active metabolite of bezitramide (Burgodin7), in biological samples by high-performance liquid chromatography with fluorescence detection. Anal. Chem., 69, 5186-5192 (1997).

W.E. Lambert. Book review : The Laboratory Practice of Clinical Toxicology by E. Berman, Charles C. Thomas,  Publisher. J. Chromatogr. A., 775, 383 (1997).

W. Lambert, E. Meyer, J. Van Bocxlaer, A. De Leenheer, and M. Piette. Relevance of toxicological screening for chloroquine in nonmalarious areas. J. Anal. Toxicol., 21, 321-322 (1997).

K.M. Clauwaert, J.F. Van Bocxlaer, W.E. Lambert, and A.P. De Leenheer. Liquid chromatographic determination of cocaine, benzoylecgonine, and cocaethylene in whole blood and serum samples by diode-array detection. J. Chromatogr. Sci., 35, 321-328 (1997).

E. Meyer, J.F. Van Bocxlaer, I.M. Dirinck, W.E. Lambert, L. Thienpont, and A.P. De Leenheer. Tissue distribution of amphetamine isomers in a fatal overdose. J. Anal. Toxicol., 21, 236-239 (1997).

S. De Baere, E. Meyer, I. Dirinck, W. Lambert, M. Piette, C. Van Peteghem, and A. De Leenheer. Tissue distribution of trichloroethylene and its metabolites in a forensic case. J. Anal. Toxicol., 21, 223-227 (1997).

J.F. Van Bocxlaer, K.M. Clauwaert, W.E. Lambert, and A.P. De Leenheer. Quantitative colorimetric determination of urinary p-aminophenol with an automated analyzer.  Clin. Chem., 43, 627-634 (1997).

E. Meyer, W.E. Lambert, and A. De Leenheer. Succinic acid is not a suitable indicator of   suxa­methonium exposure in forensic blood samples. (Letter to the Editor). J. Anal. Toxicol., 21, 170-171 (1997).

M. Malbrain, G. Lambrecht, E. Zandyk, P. Demedts, H. Neels, W. Lambert, A. De Leenheer, R. Lins and R. Daelemans. Treatment of severe thallium intoxication. J. Toxicol. Clin. Toxicol., 35, 97-100 (1997).

W.E. Lambert, J.F. Van Bocxlaer and A.P. De Leenheer. Potential of high-performance liquid chromatography with photodiode array detection in forensic toxicology. J. Chromatogr. B., 689, 45-53 (1997).

J.F. Van Bocxlaer, W.E. Lambert, L. Thienpont, and A.P. De Leenheer. Quantitative determination of amphetamine and a-phenylethylamine enantiomers in judicial samples using capillary gas chromatography. J. Anal. Toxicol., 21, 5-11 (1997).

  1996  

W.E. Lambert and K.J. Scott. Evolutions in the analysis of fat-soluble vitamins and carotenoids. Int. J. Vitam. Nutr. Res., 66, 270-272 (1996).

J. Van Bocxlaer, E. Meyer, K. Clauwaert, W. Lambert, M. Piette, and A. De Leenheer.  zopiclone poisoning. (Reply to a Letter to the Editor). J. Anal. Toxicol., 20, 274 (1996).

K.M. Clauwaert, J.F. Van Bocxlaer, W.E. Lambert, A.P. De Leenheer. Analysis of cocaine,   benzoylecgonine, and cocaethylene in urine by HPLC with diode array detection. Anal. Chem., 68, 3021-3028 (1996).

S.M. De Baere, W.E. Lambert, J.F. Van Bocxlaer, and A.P. De Leenheer. Quantitative gas chroma­tographic analysis of 3-cyano-3,3-diphenylpropionic acid, the acidic metabolite of bezitramide (Burgodin7), in urine. J. Anal. Toxicol., 20, 159-164 (1996).

E. Meyer, J.F. Van Bocxlaer, W.E. Lambert, L. Thienpont, and A.P. De Leenheer. Identification of a-phenylethylamine in judicial samples. J. Anal. Toxicol., 20, 116-120 (1996).

W. Lambert, J. Van Bocxlaer, M. Piette, and A. De Leenheer. Reply to a letter to the editor by G. Esposito. Trazodone and dothiepin poisoning. J. Anal. Toxicol., 20, 59-60 (1996).

J. Van Bocxlaer, E. Meyer, K. Clauwaert, W. Lambert, M. Piette, and A. De Leenheer.  Analysis of zoplicone (Imovane7) in postmortem specimens by GC-MS and HPLC with diode-array detection. J. Anal. Toxicol., 20, 52-54 (1996).

  1995  

E. Meyer, J. Van Bocxlaer, W. Lambert, L. Thienpont, A. De Leenheer. Alpha-phenylethylamine identified in judicial samples. For. Sci. Int., 76, 159-160 (1995).

W. Lambert, E. Meyer, A. De Leenheer. Cyanide and sodium azide intoxica-tion. (Letter to the Editor) Ann. Emerg. Med., 26, 392 (1995).

B.A. Periquet, N.M. Jammes, W.E. Lambert, J. Tricoire, M.M. Moussa, J. Garcia, J. Ghisolfi and J.-P. Thouvenot. Micronutrient levels in HIV-1-infected children. AIDS, 9, 887-893 (1995).

W.E. Lambert, M. Piette, C. Van Peteghem, and A.P. De Leenheer. Applica-tion of high performance liquid chromatography to a fatality involving azide. J. Anal. Toxicol., 19, 261-264 (1995).

K. Clauwaert, W. Lambert and A. De Leenheer. High performance liquid chromatographic determination of cocaine and its main metabolites in biological samples : a review. J. Liq. Chromatogr., 18, 2097-2114 (1995).

E. Meyer, J.F. Van Bocxlaer, W.E. Lambert, M. Piette and A.P. De Leenheer;  Determination of chloral hydrate and metabolites in a fatal intoxication. J. Anal. Toxicol., 19, 124-126 (1995).

W.E. Lambert, E. Meyer, and A.P. De Leenheer, Systematic toxicological analysis of basic drugs by gradient elution of an alumina-based HPLC packing material under alkaline conditions. J. Anal. Toxicol., 19, 73-78 (1995).

W.E. Lambert, E. Meyer, Y. Xue-Ping, and A.P. De Leenheer. Screening, identification and quanti­tation of benzodiazepines in postmortem samples by HPLC with photodiode array detection. J. Anal. Toxicol., 19, 35-40 (1995).

  1994 

J.-Z. Huo, J. Van Bocxlaer, W.E. Lambert and A.P. De Leenheer.  Determination of embutramide in biological matrices by gas chromatography with nitrogen-phosphorus detection. J. Chromatogr., 661, 69-74 (1994).

H.O. Lyon, A.P. De Leenheer, R.W. Horobin, W.E. Lambert, E.K.W. Schulte, B. Van Liedekerke, and D.H. Wittekind. Standardization of reagents and methods used in cytological and histological practice with emphasis on dyes, stains and chromogenic reagents. Histochem. J., 26, 533-544 (1994).

W.E. Lambert, E. Meyer, A.P. De Leenheer, J. De Bersaques, and A.H. Kint.  Pharmacokinetics of acitretin. Acta Derm. Venereol., Suppl., 186, 122-123 (1994).

W. Lambert, J. Van Bocxlaer, M. Piette, and A.P. De Leenheer. A fatal case of trazodone and dothiepin poisoning : toxicological findings. J. Anal. Toxicol., 18, 176-179 (1994).

E. Meyer, W.E. Lambert, and A.P. De Leenheer. Simultaneous determination of endogenous retinoic acid isomers and retinol in human plasma by isocratic normal-phase HPLC with UV-detection. Clin. Chem., 40, 48-50 (1994).

  1993 

A.E. Wallnöfer, J.M.T. van Griensven, H.C. Schoemaker, A.F. Cohen, W. Lambert, C. Kluft, P. Meijer, and T. Kooistra. Effect of isotretinoin on endogenous tissue-type plasminogen activator (t-PA) and plasminogen activator inhibitor 1 (PAI-1) in humans. Thromb. Haemost., 70, 1005-1008 (1993).

E. Meyer, J. De Bersaques, W.E. Lambert, A.P. De Leenheer, and A.H. Kint.  Skin, adipose tissue and plasma levels of acitretin with rare occurrence of esterified acitretin during long-term treat­ment. Acta Derm. Venereol., 73, 113-115 (1993).

  1992 

W.E. Lambert, A.P. De Leenheer, J.F. Van Bocxlaer, and M. Piette. Meprobamate intoxication : rare and difficult to find. J. Toxicol. Clin. Toxicol., 30, 683-684 (1992).

W.E. Lambert, E. Meyer, A.P. De Leenheer; J. De Bersaques, and A.H. Kint.  Pharmacokinetics and drug interactions of etretinate and acitretin. J. Am. Acad. Dermatol., 27, S 19-22 (1992).

W.E. Lambert, L. Vanneste, and A.P. De Leenheer. Enzymatic sample hydrolysis and high perfor­mance liquid chromatography in a study of the phylloquinone level in human milk. Clin. Chem., 38, 1743-1748 (1992).

O. Amédée-Manesme, W.E. Lambert, D. Alagille, and A.P. De Leenheer. Pharmacokinetics and safety of a new solution of vitamin K1(20) in children with cholestasis. J. Pediatr. Gastroenterol. Nutr., 14, 160-165 (1992).

E. Meyer, W. Lambert, A. De Leenheer, J. De Bersaques, and A. Kint. The distribution of cis- and trans-acitretin in human epidermis. Brit. J. Clin. Pharmacol., 33, 187-189 (1992).