David Larrazábal
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
David Larrazábal has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
Begoña Fabrellas
Fossil Fuels Department, CIEMAT, Avda. Complutense 22, 28040 Madrid, Spain
1 shared publication- Damià Barceló
Chemistry and Physics Department, University of Almeria, Ctra Sacramento s/n, 04120 Almeria, Spain
1 shared publication - Ethel Eljarrat
Environmental and Water Chemistry for Human Health (ONHEALTH), Institute of Environmental Assessment and Water Research (IDAEA)-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
1 shared publication - María Angeles Martínez
Unit of POPs and Emerging Pollutants in Environment, Department of Environment, CIEMAT, Madrid, Spain
1 shared publication
Latest Publications
- 4 October 2004
- Published by Wiley in Journal of Mass Spectrometry
- Vol. 39 (10) , 1168-1175
Optimization of quadrupole ion storage mass spectrometric conditions for the analysis of selected polybrominated diphenyl ethers. Comparative approach with negative chemical ionization and electron impact mass spectrometry
Gas chromatography coupled to quadrupole ion storage mass spectrometry (QISTMS) operating in the non‐resonant mode is presented as an innovative approach for the analysis of selected polybrominated diphenyl ethers (PBDEs). Although reductions in complexity and time needed for optimization are achieved in comparison with the resonant option, precise adjustment of the mass spectrometric conditions is required. Differences in isolation and fragmentation patterns of target species with degree of bromination were observed. The reliability of the method was confirmed by using standard solutions through the evaluation of certain quality parameters such as accuracy (92–108%), injection repeatability and reproducibility (coefficient of variation below 10% and 15%, respectively). Detection limits ranged from 62 to 621 fg, providing sensitivity similar to that of negative chemical ionisation (NCIMS) and greater than that of electron ionization mass spectrometry. The applicability of QISTMS method to real samples and matrix effects were evaluated through the analysis of some PBDE congeners in a sewage sludge sample from a Spanish waste‐water treatment plant. Comparable results were obtained using QISTMS and NCIMS. According to these observations, QISTMS performed in the non‐resonant mode may constitute a low‐cost, rapid and reliable alternative to high‐resolution devices for the analysis of selected PBDEs in environmental samples. Copyright © 2004 John Wiley & Sons, Ltd.
- 4 October 2004
- Published by Wiley in Journal of Mass Spectrometry
- Vol. 39 (10) , 1168-1175
Optimization of quadrupole ion storage mass spectrometric conditions for the analysis of selected polybrominated diphenyl ethers. Comparative approach with negative chemical ionization and electron impact mass spectrometry
Gas chromatography coupled to quadrupole ion storage mass spectrometry (QISTMS) operating in the non‐resonant mode is presented as an innovative approach for the analysis of selected polybrominated diphenyl ethers (PBDEs). Although reductions in complexity and time needed for optimization are achieved in comparison with the resonant option, precise adjustment of the mass spectrometric conditions is required. Differences in isolation and fragmentation patterns of target species with degree of bromination were observed. The reliability of the method was confirmed by using standard solutions through the evaluation of certain quality parameters such as accuracy (92–108%), injection repeatability and reproducibility (coefficient of variation below 10% and 15%, respectively). Detection limits ranged from 62 to 621 fg, providing sensitivity similar to that of negative chemical ionisation (NCIMS) and greater than that of electron ionization mass spectrometry. The applicability of QISTMS method to real samples and matrix effects were evaluated through the analysis of some PBDE congeners in a sewage sludge sample from a Spanish waste‐water treatment plant. Comparable results were obtained using QISTMS and NCIMS. According to these observations, QISTMS performed in the non‐resonant mode may constitute a low‐cost, rapid and reliable alternative to high‐resolution devices for the analysis of selected PBDEs in environmental samples. Copyright © 2004 John Wiley & Sons, Ltd.