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Stir membrane extraction: a useful approach for liquid sample pretreatment.
- M. Alcudia-León, R. Lucena, S. Cárdenas, M. Valcárcel
- ChemistryAnalytical chemistry
- 28 September 2009
The novel approach was sensitive and precise enough for the detection of the target analytes in the low nanogram per liter range using 25 mL of sample, and ranged from 0.8 ng/L (fluoranthene) to 7.6 ng/ L (benzo-anthracene) with relative standard deviations lower than 8%.
One step carbon nanotubes-based solid-phase extraction for the gas chromatographic-mass spectrometric multiclass pesticide control in virgin olive oils.
Monitoring nanoparticles in the environment
This overview describes some methodological aspects relating to the fields of nanoparticle analysis, nanometrology and analytical chemistry.
Supercritical fluid extraction of phenol compounds from olive leaves.
Carbon nanostructures as sorbent materials in analytical processes
Determination of parabens in cosmetic products using multi-walled carbon nanotubes as solid phase extraction sorbent and corona-charged aerosol detection system.
One-step in-syringe ionic liquid-based dispersive liquid-liquid microextraction.
Present and future applications of carbon nanotubes to analytical science
- M. Valcárcel, B. Simonet, S. Cárdenas, B. Suárez
- ChemistryAnalytical and bioanalytical chemistry
- 9 July 2005
It is clear that while nanotubes are being tested for use in many different fields, their truly enormous potential has yet to be realized in analytical chemistry.
Study of the degradation of the herbicides 2,4-D and MCPA at different depths in contaminated agricultural soil.
- M. Crespin, M. Gallego, M. Valcárcel, J. González
- Chemistry, MedicineEnvironmental science & technology
- 2 October 2001
Two phenoxyacid herbicides (2,4-D and MCPA) and their six corresponding phenols were determined in soil by using gas chomatography with electron impact mass spectrometry (GC/MS) for…