Results 21 to 30 of about 913,823 (355)

Sulfonic Acid-based Covalent Organic Framework for the Rapid Determination Towards Fluoroquinolone Antibiotic Residues in Milk

Shipin gongye ke-ji, 2023
To expand the application of novel nanomaterial based solid phase extraction technology in complex food matrices, a sulfonic acid based covalent organic framework (TpPa-SO3H) was prepared as solid phase extraction adsorbents for the rapid analysis of ...
Lu ZHANG, Wei JIANG
doaj   +1 more source

Hydrophilic hypercrosslinked polymeric sorbents for the solid-phase extraction of polar contaminants from water [PDF]

, 2010
Three new hypercrosslinked polymers with hydrophilic character arising from hydroxyl moieties in their skeletons have been prepared in microsphere format and applied to the off-line solid-phase extraction (SPE) of polar compounds from water samples.
Borrull, F., Bratkowska, D., Cormack, P.A.G., Fontanals, N., Marce, R.M., Sherrington, D.C.   +5 more
core   +1 more source

Extração em fase sólida (SPE) e micro extração em fase sólida (SPME) de piretróides em água Solid-phase extraction (SPE) and solid-phase microextraction of pyrethroids in water

Química Nova, 2001
The pyrethroids bifenthrin, permethrin, cypermethrin and deltamethrin were extracted by solid phase extraction (SPE) and solid phase microextraction (SPME).
Wilma Regina Barrionuevo, Fernando Mauro Lanças   +1 more
doaj   +1 more source

Mass transfer in a gas-solid packed column at trickle flow [PDF]

, 1979
The height of an overall transfer unit has been evaluated in a gas—solid packed column at trickle flow by measuring column performance during steady state adsorption experiments.
Roes, A.W.M., Swaaij, W.P.M. van
core   +3 more sources

Selective extraction of Ascorbic acid by molecular imprinted polymer solid-phase extraction [PDF]

Journal of Chemistry Letters, 2022
A Highly sensitive and selective molecular imprinted polymer (MIP) was synthesized for solid phase extraction and preconcentration of trace amount of Ascorbic acid (AA).
Leila Baramakeh
doaj   +1 more source

Automated processing of whole blood samples for the determination of immunosuppressants by liquid chromatography tandem-mass spectrometry [PDF]

, 2006
Background: Liquid chromatography tandem-mass spectrometry (LC-MS/MS) is an efficient technology for routine determination of immunosuppressants in whole blood; however, time-consuming manual sample preparation remains a significant limitation of this ...
Spöhrer, Ute, Vogeser, Michael
core   +1 more source

Recent advances in accelerating solid-phase extraction

Journal of Chromatography Open
With the growing demand for rapid processing of laboratory samples, great efforts have been dedicated to improving the speed and throughput of solid phase extraction (SPE), a widely used sample pretreatment technique.
Jingwei Zhou, Yuexiang Chang, Hao Tian, Jia-Huan Qu, Qiqin Wang, Jincai Wang, Zhengjin Jiang   +6 more
doaj   +1 more source

Liquid-phase microextraction (LPME): fundamentals and applications to the analysis of drugs in biological samples [PDF]

, 2008
The analysis of drugs and metabolites in biological fluids usually requires extraction procedures to achieve sample clean-up and analyte preconcentration.
BONATO, Pierina Sueli, MAGALHÃES, Igor Rafael dos Santos, OLIVEIRA, Anderson Rodrigo Moraes de, SANTANA, Fernando José Malagueño de   +3 more
core   +2 more sources

An on-line solid phase extraction procedure for the routine quantification of caspofungin by liquid chromatography-tandem mass spectrometry [PDF]

, 2012
Background: Extensive sets of data are required to investigate the potential use of a therapeutic drug monitoring with individualization of dosage of the antimycotic compound caspofungin.
Kirchhoff, Fabian, Maier, Barbara, Ostermann, Helmut, Rieger, Christina, Spoehrer, Ute, Vogeser, Michael   +5 more
core   +1 more source

Overview of Liquid Sample Preparation Techniques for Analysis, Using Metal-Organic Frameworks as Sorbents

Molecules
The preparation of samples for instrumental analysis is the most essential and time-consuming stage of the entire analytical process; it also has the greatest impact on the analysis results.
Jakub Woźniak, Jakub Nawała, Daniel Dziedzic, Stanisław Popiel   +3 more
doaj   +1 more source