At-line SPE-GC-MS of micropollutants in water using the PrepStationHANKEMEIER, T; STEKETEE, P. C; VREULS, J. J et al.Fresenius' journal of analytical chemistry. 1999, Vol 364, Num 1-2, pp 106-112, issn 0937-0633Article

Ethyl acetate for the desorption of a liquid chromatographic precolumn on-line into a gas chromatographVREULS, J. J; CUPPEN, W. J. G. M; DE JONG, G. J et al.HRC. Journal of high resolution chromatography. 1990, Vol 13, Num 3, pp 157-161, issn 0935-6304Article

Automated derivatization for on-line solid-phase extraction-gas chromatography; phenolic compoundsLOUTER, A. J. H; JONES, P. A; JORRITSMA, J. D et al.HRC. Journal of high resolution chromatography. 1997, Vol 20, Num 7, pp 363-368, issn 0935-6304Article

On-line solid-phase extraction-gas chromatography-ion trap tandem mass spectrometric detection for the nanogram per liter analysis of trace pollutants in aqueous samplesVERMA, K. K; LOUTER, A. J. H; JAIN, A et al.Chromatographia (Wiesbaden). 1997, Vol 44, Num 7-8, pp 372-380, issn 0009-5893Article

Rapid analysis of organic microcontaminants in environmental water samples by trace enrichment and liquid chromatography on a single short columnHOGENBOOM, A. C; MALMQVIST, U. K; NOLKRANTZ, K et al.Journal of chromatography. 1997, Vol 759, Num 1-2, pp 55-64, issn 0021-9673Article

On-line solid-phase extraction-thermal desorption-gas chromatography with ion trap detection tandem mass spectrometry for the analysis of microcontaminants in waterLOUTER, A. J. H; VAN DOORNMALEN, J; VREULS, J. J et al.HRC. Journal of high resolution chromatography. 1996, Vol 19, Num 12, pp 679-685, issn 0935-6304Article

Automated determination of pyrethroid insecticides in surface water by column liquid chromatography with diode array UV detection, using on-line micell-mediated sample preparationBROUWER, E. R; STRUYS, E. A; VREULS, J. J et al.Fresenius' journal of analytical chemistry. 1994, Vol 350, Num 7-9, pp 487-495, issn 0937-0633Article

On-line combination of aqueous-sample preparation and capillary gas chromatographyLOUTER, A. J. H; VREULS, J. J; BRINKMAN, U. A. T et al.Journal of chromatography. 1999, Vol 842, Num 1-2, pp 391-426, issn 0021-9673Article

On-line combination of aqueous-sample preparation and capillary gas chromatographyVREULS, J. J; LOUTER, A. J. H; BRINKMAN, U. A. T et al.Journal of chromatography. 1999, Vol 856, Num 1-2, pp 279-314, issn 0021-9673Article

Data correlation in on-line solid-phase extraction-gas chromatography-atomic emission/mass spectrometric detection of unknown micro contaminantsHANKEMEIER, T; ROZENBRAND, J; ABHADUR, M et al.Chromatographia (Wiesbaden). 1998, Vol 48, Num 3-4, pp 273-283, issn 0009-5893Article

Automated on-line gel permeation chromatography-gas chromatography for the determination of organophosphorus pesticides in olive oilVREULS, J. J; SWEN, R. J. J; GOUDRIAAN, V. P et al.Journal of chromatography. 1996, Vol 750, Num 1-2, pp 275-286, issn 0021-9673Conference Paper

Drying agents for water-free introduction of desorption solvent into a GC after on-line SPE of aqueous samplesPICO, Y; VREULS, J. J; GHIJSEN, R. T et al.Chromatographia (Wiesbaden). 1994, Vol 38, Num 7-8, pp 461-469, issn 0009-5893Article

Selective and sensitive detection of organic contaminants in water samples by on-line trace enrichment-gas chromatography-mass spectrometryBULTERMAN, A.-J; VREULS, J. J; GHIJSEN, R. T et al.HRC. Journal of high resolution chromatography. 1993, Vol 16, Num 7, pp 397-403, issn 0935-6304Article

A trapping column for the coupling of reversed-phase liquid chromatography and capillary gas chromatographyVREULS, J. J; GOUDRIAAN, V. P; BRINKMAN, U. A. T et al.HRC. Journal of high resolution chromatography. 1991, Vol 14, Num 7, pp 475-480, issn 0935-6304Article

Study of the fast competitive adsorption of pesticides in soils by simultaneous filtration and solid-phase extraction with subsequent GC-MSRAMOS, L; SOJO, L. E; VREULS, J. J et al.Environmental science & technology. 2000, Vol 34, Num 6, pp 1049-1055, issn 0013-936XArticle

Automated on-line solid-phase extraction-gas chromatography with nitrogen-phosphorus detection : Determination of benzodiazepines in human plasmaLOUTER, A. J. H; BOSMA, E; SCHIPPEREN, J. C. A et al.Journal of chromatography. B, Biomedical sciences and applications. 1997, Vol 689, Num 1, pp 35-43, issn 1387-2273Article

Trace-level determination of pesticide residues using on-line solid-phase extraction-column liquid chromatography with atmospheric pressure ionization mass spectrometric and tandem mass spectrometric detectionSLOBODNIK, J; HOGENBOOM, A. C; VREULS, J. J et al.Journal of chromatography. A. 1996, Vol 741, Num 1, pp 59-74Article

Rapid liquid chromotographic screening of organic micropollutants in aqueous samples using a single short column for trace enrichment and separationMINNAARD, W. A; SLOBODNIK, J; VREULS, J. J et al.Journal of chromatography. A. 1995, Vol 696, Num 2, pp 333-340Article

On-line trace-level enrichment gas chromatography of triazine herbicides, organophosphorus pesticides, and organosulfur compounds from drinking and surface watersPICO, Y; LOUTER, A. J. H; VREULS, J. J et al.Analyst (London. 1877. Print). 1994, Vol 119, Num 9, pp 2025-2031, issn 0003-2654Article

Determination of triazine herbicides in surface and drinking waters by off-line combination of liquid chromatography and gas chromatography-mass spectrometryBAGHERI, H; VREULS, J. J; GHIJSEN, R. T et al.Chromatographia (Wiesbaden). 1992, Vol 34, Num 1-2, pp 5-13, issn 0009-5893Article

On-line coupling of liquid chromatography, capillary gas chromatography and mass spectrometry for the determination and identification of polycyclic aromatic hydrocarbons in vegetables oilsVREULS, J. J; DE JONG, G. J; BRINKMAN, U. A. T et al.Chromatographia (Wiesbaden). 1991, Vol 31, Num 3-4, pp 113-118, issn 0009-5893Article

In-column and post-column photochemical fluorescence enhancement in packed capillary liquid chromatographyJANSEN, H; VREULS, J. J; VAN DER HEIDE, T. A. J et al.Journal of liquid chromatography. 1988, Vol 11, Num 9-10, pp 1855-1863, issn 0148-3919Article

Fast temperature programming in gas chromatography using resistive heatingDALLÜGE, J; OU-AISSA, R; VREULS, J. J et al.HRC. Journal of high resolution chromatography. 1999, Vol 22, Num 8, pp 459-464, issn 0935-6304Article

Monitoring of organic micropollutants in surface water by automated on-line trace-enrichment liquid and gas chromatographic systems with ultraviolet diode-array and mass spectrometric detectionsSLOBODNIK, J; LOUTER, A. J. H; VREULS, J. J et al.Journal of chromatography. 1997, Vol 768, Num 2, pp 239-258, issn 0021-9673Conference Paper

Detectability enhancement by the use of large-volume injections in gas chromatography-cryotrapping-Fourier transform infrared spectrometryHANKEMEIER, T; VAN DER LAAN, H. T. C; VREULS, J. J et al.Journal of chromatography. A. 1996, Vol 732, Num 1, pp 75-84Article