Showing results 21 to 30 of 30
   Optimization and validation of a parallel PLE procedure for the extraction of ultra-trace levels of PCDD/Fs and DL-PCBs in biological matrices and guar gumFocant, Jean-François  ; Eppe, Gauthier ; Scholl, Georges et alin Book of abstracts (2008, January) Detailed reference viewed: 5 (2 ULg) Persistent organochlorine pollutants, dioxins and polychlorinated biphenylsScippo, Marie-Louise ; Eppe, Gauthier ; Saegerman, Claude et alin Contaminant and Residue Analysis, Comprehensive Analytical Chemistry of Elsevier (2008) Detailed reference viewed: 114 (31 ULg)Validation of a pressurised liquid extraction (PLE) multi-columns low pressure LC coupled to GC-HRMS for PCDD/Fs and dioxin-like PCBs in guar gumEppe, Gauthier ; Scholl, Georges ; De Pauw, Edwin et alin RAFA 2007 Book of abstracts (2007, November) Detailed reference viewed: 5 (0 ULg)Optimization of a parellel PLE procedure for the extraction of PCDDs and PCDFs in sepioliteFocant, Jean-François ; Scholl, Georges ; De Pauw, Edwin et alin Organohalogen Compounds (2007), 69 Detailed reference viewed: 7 (2 ULg)Performance of quadrupole-ion-trap mass spectrometry for the analysis of furanScholl, Georges ; Scippo, Marie-Louise ; Maghuin-Rogister, Guy et alPoster (2007) Detailed reference viewed: 12 (2 ULg)Analysis of furan by GC/MSScholl, Georges ; Eppe, Gauthier ; Scippo, Marie-Louise et alPoster (2007) Detailed reference viewed: 15 (3 ULg)Development and optimisation of a sub room temperature SPME-GC-MS method for the analysis of furan in foodScholl, Georges ; Scippo, Marie-Louise ; Maghuin-Rogister, Guy et alPoster (2007) Detailed reference viewed: 12 (2 ULg)High-throughput biomonitoring of dioxins and polychlorinated biphenyls at the sub-picogram level in human serumFocant, Jean-François ; Eppe, Gauthier ; Massart, Anne-Cécile et alin Journal of Chromatography. A (2006), 1130(1), 97-107 We report on the use of a state-of-the-art method for the measurement of selected polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans and polychlorinated biphenyls in human serum specimens ... [more ▼] We report on the use of a state-of-the-art method for the measurement of selected polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans and polychlorinated biphenyls in human serum specimens. The sample preparation procedure is based on manual small size solid-phase extraction (SPE) followed by automated clean-up and fractionation using multi-sorbent liquid chromatography columns. SPE cartridges and all clean-up columns are disposable. Samples are processed in batches of 20 units, including one blank control (BC) sample and one quality control (QC) sample. The analytical measurement is performed using gas chromatography coupled to isotope dilution high-resolution mass spectrometry. The sample throughput corresponds to one series of 20 samples per day, from sample reception to data quality cross-check and reporting, once the procedure has been started and series of samples keep being produced. Four analysts are required to ensure proper performances of the procedure. The entire procedure has been validated under International Organization for Standardization (ISO) 17025 criteria and further tested over more than 1500 unknown samples during various epidemiological studies. The method is further discussed in terms of reproducibility, efficiency and long-term stability regarding the 35 target analytes. Data related to quality control and limit of quantification (LOQ) calculations are also presented and discussed. (c) 2006 Elsevier B.V. All rights reserved. [less ▲] Detailed reference viewed: 51 (10 ULg)On-line PLE-LC sample preparation for the measurement of dioxins and WHO-PCBs in food and feedFocant, Jean-François ; PIRARD, Catherine ; Massart, Anne-Cécile et alin Book of abstracts (2006, February) Detailed reference viewed: 6 (0 ULg)Measurement of dioxin and PCB PPT levels in human serum by SPE-LC-GC-IDHRMS for high throughput epidemiological studiesFocant, Jean-François ; Eppe, Gauthier ; Massart, Anne-Cécile et alin Book of abstarcts (2006, February) Detailed reference viewed: 7 (1 ULg)
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