A new issue of this journal has just been published. To see abstracts of the papers it contains (with links through to the full papers) click here:
Selected papers from the latest issue:
Dispersive liquid-liquid microextraction using non-chlorinated, lighter than water solvents for gas chromatography-mass spectrometry determination of fungicides in wine
24 July 2011, 20:44:11
Publication year: 2011
Source: Journal of Chromatography A, In Press, Accepted Manuscript, Available online 24 July 2011
T., Rodríguez-Cabo , I., Rodríguez , M., Ramil , R., Cela.
A novel and low solvent consumption method for the sensitive determination of fungicide residues in wine samples is proposed. Analytes were extracted by dispersive liquid-liquid microextraction (DLLME) and further determined by gas chromatography-mass spectrometry (GC-MS). Under optimized conditions, a binary mixture of acetone and 1-undecanol (0.5 and 0.05mL, respectively) was used to extract target compounds from diluted (1:1) wine samples. After centrifugation, the floating phase of 1-undecanol was solidified and separated from the liquid hydro-alcoholic matrix. Thereafter, it was allowed to melt at room temperature and injected in the GC-MS system. The method showed relative standard deviations (RSDs, %) below...
Source: Journal of Chromatography A, In Press, Accepted Manuscript, Available online 24 July 2011
T., Rodríguez-Cabo , I., Rodríguez , M., Ramil , R., Cela.
A novel and low solvent consumption method for the sensitive determination of fungicide residues in wine samples is proposed. Analytes were extracted by dispersive liquid-liquid microextraction (DLLME) and further determined by gas chromatography-mass spectrometry (GC-MS). Under optimized conditions, a binary mixture of acetone and 1-undecanol (0.5 and 0.05mL, respectively) was used to extract target compounds from diluted (1:1) wine samples. After centrifugation, the floating phase of 1-undecanol was solidified and separated from the liquid hydro-alcoholic matrix. Thereafter, it was allowed to melt at room temperature and injected in the GC-MS system. The method showed relative standard deviations (RSDs, %) below...
High performance liquid chromatopgraphy column packings with deliberately broadened particle size distribution: relation between column performance and packing structure
24 July 2011, 20:44:11
Publication year: 2011
Source: Journal of Chromatography A, In Press, Accepted Manuscript, Available online 24 July 2011
Anuschka, Liekens , Jeroen, Billen , Ron, Sherant , Harald, Ritchie , Joeri, Denayer , ...
The effect of the addition of 25%, 50% and 75% (weight percent, wt%) of larger particles (resp. 3 and 5μm) to a commercial batch of 1.9μm particles has been investigated as an academic exercise to study the effects of particle size distribution on the kinetic performance of packed bed columns in a magnified way. Comparing the performance of the different mixture in a kinetic plot, it could be irrefutably shown that the addition of larger particles to a commercial batch of small particles can not be expected to lead to an improved kinetic performance. Whereas the addition of 25 wt%...
Source: Journal of Chromatography A, In Press, Accepted Manuscript, Available online 24 July 2011
Anuschka, Liekens , Jeroen, Billen , Ron, Sherant , Harald, Ritchie , Joeri, Denayer , ...
The effect of the addition of 25%, 50% and 75% (weight percent, wt%) of larger particles (resp. 3 and 5μm) to a commercial batch of 1.9μm particles has been investigated as an academic exercise to study the effects of particle size distribution on the kinetic performance of packed bed columns in a magnified way. Comparing the performance of the different mixture in a kinetic plot, it could be irrefutably shown that the addition of larger particles to a commercial batch of small particles can not be expected to lead to an improved kinetic performance. Whereas the addition of 25 wt%...
Development of a multi-residue method for the determination of organic micropollutants in water, sediment and mussels using gas chromatography-tandem mass spectrometry
24 July 2011, 20:44:11
Publication year: 2011
Source: Journal of Chromatography A, In Press, Accepted Manuscript, Available online 24 July 2011
Juan, Sánchez-Avila , María, Fernandez-Sanjuan , Joana, Vicente , Silvia, Lacorte
This study describes the development of a multiresidue method based in gas chromatography-electron ionization-tandem mass spectrometry (GC-EI-MS/MS) for the detection of sixteen polycyclic aromatic hydrocarbons (PAHs), five phthalate esters (PEs), seven polychlorinated biphenyls (PCBs), six polybrominated diphenyl ethers (PBDEs), six alkylphenols (APs), three organochlorined pesticides and their isomers or degradation products (OCPs) and bisphenol A in seawater, river water, wastewater treatment plant (WWTP) effluents, sediments and mussels. Solid phase extraction (SPE) was used for the extraction of target analytes in aqueous samples, and ultrasound assisted extraction for solid samples. GC-EI-MS/MS acquisition conditions in selected reaction monitoring (SRM) using two transitions...
Source: Journal of Chromatography A, In Press, Accepted Manuscript, Available online 24 July 2011
Juan, Sánchez-Avila , María, Fernandez-Sanjuan , Joana, Vicente , Silvia, Lacorte
This study describes the development of a multiresidue method based in gas chromatography-electron ionization-tandem mass spectrometry (GC-EI-MS/MS) for the detection of sixteen polycyclic aromatic hydrocarbons (PAHs), five phthalate esters (PEs), seven polychlorinated biphenyls (PCBs), six polybrominated diphenyl ethers (PBDEs), six alkylphenols (APs), three organochlorined pesticides and their isomers or degradation products (OCPs) and bisphenol A in seawater, river water, wastewater treatment plant (WWTP) effluents, sediments and mussels. Solid phase extraction (SPE) was used for the extraction of target analytes in aqueous samples, and ultrasound assisted extraction for solid samples. GC-EI-MS/MS acquisition conditions in selected reaction monitoring (SRM) using two transitions...
Simultaneous Determination of Flonicamid and Its Metabolites in Vegetables Using QuEChERS and Reverse-Phase Liquid Chromatography Tandem Mass Spectrometry
24 July 2011, 20:44:11
Publication year: 2011
Source: Journal of Chromatography A, In Press, Accepted Manuscript, Available online 24 July 2011
Yong, Xu , Lin-Fei, Shou , Yin-Liang, Wu
This paper presents a rapid analytical method for the simultaneous determination of flonicamid and its metabolites N-(4-trifluoromethylnicotinoyl) glycine (TFNG), 4-trifluoromethylnicotinic acid (TFNA), and 4-trifluoromethylnicotinamide (TFNA-AM) in vegetables using QuEChERS by liquid chromatography tandem mass spectrometry (LC-MS/MS). Samples were extracted with acetonitrile. The extract was purified through QuEChERS method with primary secondary amine (PSA) and graphite carbon black (GCB). Then the extract was diluted with 0.1% formic acid in water, and analyzed by LC-MS/MS on a Waters Acquity BEH C18 column with methanol/0.1% formic acid in water as mobile phase with gradient elution. The linearity of the analytical response across the...
Source: Journal of Chromatography A, In Press, Accepted Manuscript, Available online 24 July 2011
Yong, Xu , Lin-Fei, Shou , Yin-Liang, Wu
This paper presents a rapid analytical method for the simultaneous determination of flonicamid and its metabolites N-(4-trifluoromethylnicotinoyl) glycine (TFNG), 4-trifluoromethylnicotinic acid (TFNA), and 4-trifluoromethylnicotinamide (TFNA-AM) in vegetables using QuEChERS by liquid chromatography tandem mass spectrometry (LC-MS/MS). Samples were extracted with acetonitrile. The extract was purified through QuEChERS method with primary secondary amine (PSA) and graphite carbon black (GCB). Then the extract was diluted with 0.1% formic acid in water, and analyzed by LC-MS/MS on a Waters Acquity BEH C18 column with methanol/0.1% formic acid in water as mobile phase with gradient elution. The linearity of the analytical response across the...
No comments:
Post a Comment