Ye, Mingli Pavel Nesterenko Yan, Zhu Xie, Peijing Chen, Meilan
Published in
Journal of Chromatography A
An improved “heart-cut” column-switching method combining ion-exclusion column, monolithic anion exchange concentrator and capillary anion-exchange column is developed and successfully applied for the determination of inorganic anions (Cl−, Br−, NO3− and HPO42−) at trace level in weak acids. The quantitative determination of selected inorganic anio...
Ye, Mingli Nesterenko, Pavel N. Yan, Zhu Xie, Peijing Chen, Meilan Pavel Nesterenko
Published in
Journal of Chromatography A
Li, Yan Pavel Nesterenko Stanley, Roger Paull, Brett Macka, Mirek
Published in
Journal of Chromatography A
The selectivity for 15 biogenic amines and amino acids shown by three capillary cation-exchange columns, IonPac CS19, CS12A and CS17 (250 × 0.4 mm ID, all from Thermo Fisher Scientific), exhibiting medium, medium low and ultra-low hydrophobicity, and either carboxylic or mixed carboxylic/phosphonic acid functional groups, was investigated. A mixed ...
Li, Yan Nesterenko, Pavel N. Stanley, Roger Paull, Brett Macka, Mirek Pavel Nesterenko
Published in
Journal of Chromatography A
Sharp, V. Scott Stafford, John D. Forbes, Robert A. Gokey, Megan A. Cooper, Mary R.
Published in
Journal of Chromatography A
Using HPLC chiral separation screening, various columns representing the polysaccharide, macrocyclic antibiotic and brush classes were assessed in multiple chromatographic modes for the separation of evacetrapib, a potential cardiovascular drug, from its enantiomer, two diastereomers and several impurities. Screening data consistently pointed to th...
Blanco-Zubiaguirre, Laura Delgado, Alejandra Ros, Oihana Posada-Ureta, Oscar Vallejo, Asier Prieto, Ailette Olivares, Maitane Etxebarria, Nestor
Published in
Environmental Science and Pollution Research
Among the different organic pollutants, persistent organic pollutants and emerging organic contaminants (EOCs) are of particular concern due to their potentially dangerous effects on the ecosystems and on human health. In the framework of the analysis of some of these organic pollutants in water samples, sorptive extraction devices have proven to b...
Tong, Shengqiang Shen, Mangmang Cheng, Dongping Zhang, Yamei Ito, Yoichiro Yan, Jizhong
Published in
Journal of chromatography. A
This work concentrates on the separation mechanism and application of chiral ligand exchange high-speed countercurrent chromatography in enantioseparation of ten racemic aromatic α-hydroxyl acids, including mandelic acid, 2-chloromandelic acid, 4-methoxymandelic acid, 4-hydroxymandelic acid, α-methylmandelic acid, 4-hydroxy-3-methoxy-mandelic acid,...
González Paredes, Rosa María García Pinto, Carmelo Pérez Pavón, José Luis Moreno Cordero, Bernardo
Published in
Journal of chromatography. A
A method based on the coupling of in situ extraction and derivatization of chlorophenols (CPs) (2-chlorophenol, 4-chloro-3-methylphenol, 2,4-dichlorophenol, and 2,4,6-trichlorophenol) from soils, accomplishing their preconcentration by means of automated microextraction by packed sorbent (MEPS), is proposed. After extraction and acylation of the ch...
Poole, Colin F. Lenca, Nicole
Published in
Journal of Chromatography A
Ionic liquids have moved from novel to practical stationary phases for gas chromatography with an increasing portfolio of applications. Ionic liquids complement conventional stationary phases because of a combination of thermophysical and solvation properties that only exist for ionic solvents. Their high thermal stability and low vapor pressure ma...
Petropoulou, Syrago-Styliani E Duong, Wendy Petreas, Myrto Park, June-Soo
Published in
Journal of chromatography. A
Hydroxylated polybrominated diphenyl ethers (OH-PBDEs) are formed from the oxidative metabolism of polybrominated diphenyl ethers (PBDEs) in humans, rats and mice, but their quantitation in human blood and other matrices with liquid chromatography-mass spectrometric techniques has been a challenge. In this study, a novel analytical method was devel...
