Pérez-Robles, Raquel Fekete, Szabolcs Kormány, Róbert Navas, Natalia Guillarme, Davy
Published in
Journal of chromatography. A
When therapeutic proteins are analysed under hydrophilic interaction liquid chromatography (HILIC) conditions, there is an inherent mismatch between the sample diluent (proteins must be solubilised in aqueous media) and the mobile phase, which is mostly composed of aprotic solvent (acetonitrile). This difference in eluent strength between sample di...
Am, Alice Faccio, Marta Elisa Pinvidic, Marie Reygue, Eva Doan, Bich-Thuy Lescot, Camille Trapiella Alfonso, Laura d'Orlyé, Fanny Varenne, Anne
Published in
Journal of chromatography. A
Nanostructures formed by the self-assembling peptide building blocks are attractive materials for the design of theranostic objects due to their intrinsic biocompatibility, accessible surface chemistry as well as cavitary morphology. Short peptide synthesis and modification are straightforward and give access to a great diversity of sequences, maki...
Li, Xuemei Zhang, Lidan Yang, Mingzhu Wang, Rongyu Zong, Shaojun Ning, Xiaobei Lv, Yingchao Wang, Xiao Ji, Wenhua
Published in
Journal of chromatography. A
Aflatoxins (AFs) exhibit hepatotoxicity, immunotoxicity, and carcinogenicity, and their detection in food has attracted widespread concern. An ordered macroporous metal-organic framework (OM-ZIF-8) based on solid-phase extraction (SPE) was used to extract six AFs from milk products. The SPE conditions, including eluting solvent, eluting volume, amo...
Küçük, Melike Osman, Bilgen Tümay Özer, Elif
Published in
Journal of chromatography. A
A dummy molecularly imprinted polymer-based solid-phase extraction (SPE) sorbent was used for the selective extraction of some phthalate monoesters, monoethyl phthalate (MEP), monobutyl phthalate (MnBP) and mono-(2-ethylhexyl) phthalate (MEHP) in urine prior to gas-chromatography-mass spectrometry (GC-MS) analysis. Diethyl phthalate (DEP), a phthal...
Upreti, Bhagwat Vempatapu, Bhanu Prasad Kumar, Jagdish Kanaujia, Pankaj K
Published in
Journal of chromatography. A
Lubricating oils help an internal combustion engine function effectively by reducing friction and wear on the engine's moving parts. They typically consist of petroleum-derived base oil and various additives to achieve the desired characteristics in automotive engine oils. Determination of aromatics and polar additives in the finished and used lubr...
Sun, Jian Zheng, Zheheng Jia, Zixiao Wang, Jiabin Lin, Xucong
Published in
Journal of chromatography. A
Herein, an ionic covalent organic framework (iCOF) surface grafting monolithic sorbent was prepared by the multivariate surface self-assembly strategy for in-tube solid-phase microextraction (SPME) of trace aristolochic acids (AAs) in serum, traditional Chinese medicines (TCMs) and Chinese patent drug. Via adjusting the proportion of ionic COF buil...
Castejón-Musulén, Oscar Lopez, Ricardo Ontañón, Ignacio Ferreira, Vicente
Published in
Journal of chromatography. A
A quantitative analytical method capable of determining the concentrations of 81 aroma-relevant wine volatiles covering nine orders of magnitude was developed and validated in this study. The method is based on stir bar sorptive extraction (SBSE) of 200 μL of wine diluted with 1.8 mL NaCl brine with pH 3.5. Volatiles thermally desorbed from the sti...
Pokrovskiy, Oleg Rostovschikova, Irina Ustinovich, Konstantin Voronov, Ilya Kosyakov, Dmitry
Published in
Journal of chromatography. A
A chromatography-like propagation of water through the material bed was observed while performing supercritical fluid extraction of aroma plants having high moisture content. While parts of raw material bed placed at the inlet of the extraction vessel get dried after appropriate extraction time, the parts closer to the outlet not only stay wet but,...
Hu, Haoyun Feng, Wenjuan Shi, Rui Pan, Hong Liu, Cheng Ruan, Guihua Huang, Yipeng
Published in
Journal of chromatography. A
Here, imine-linked covalent organic frameworks coated Fe3O4 microspheres were fabricated and employed as the self-template to prepare magnetic porous carbon material. The magnetic solid phase extraction (MSPE) performance of such magnetic covalent organic frameworks derived porous carbons (CMCOFs) were studied for the first time, and the improved M...
Souza, Israel D Queiroz, Maria Eugênia C
Published in
Journal of chromatography. A
Organic-silica hybrid monolithic materials have attracted considerable attention as potential stationary phases in separation science. These materials combine the advantages of organic polymer and silica-based monoliths, including easy preparation, lower back pressure, high permeability, excellent mechanical strength, thermal stability, and tunable...
