May 15th 2024
The still relatively new technique has distinct advantages, but a few of those benefits make it incompatible with some of the currently accepted principles of green sample preparation.
MIP Process Used in Antiepileptic Drug Analysis
April 1st 2009Researchers from Universitat Rovira i Virgili (Tarragona, Spain) and the University of Strathclyde (Glasgow, UK) synthesized two molecularly imprinted polymers (MIPs) by precipitation polymerization using the antiepileptic drug carbamazepine as the template molecule and two types of crosslinking agents.
Micro SPE Using Carbon Nanotubes
April 1st 2009Scientists from the New Jersey Institute of Technology (Newark, New Jersey) used micro solid-phase extraction (SPE) devices consisting of single- and multiwalled carbon nanotubes packed in the needle of a syringe for sampling, analyte enrichment, and sample introduction.
PBDE Analysis with SPE and LLE
April 1st 2009Researchers from Central China Normal University (Wuhan, China), Wenzhou Medical College (Wenzhou, China), and East China University of Science and Technology (Shanghai, China) extracted polybrominated diphenyl ethers (PBDEs) from water and plant samples using solid-phase extraction (SPE) and dispersive liquid?liquid microextraction (DLLME).
PAH Extraction from Water Samples
April 1st 2009Researchers from IWW Water Centre (Mülheim an der Ruhr, Germany) and University Duisburg-Essen (Duisberg, Germany) developed a solid-phase extraction (SPE) procedure using extraction disks in the analysis of polycyclic aromatic hydrocarbons (PAHs) in surface water samples.
GPC-LC-MS-MS Method for Mycotoxins in Edible Oil
March 4th 2009Researchers at the Munich Technical University and Bavarian Health and Food Safety Authority have developed a comprehensive mycotoxin screening method based on the use of an LCTech GPC ULTRA gel permeation chromatography (GPC) instrument, which is distributed in North America by Pickering Laboratories (Mountain View, California) for sample cleanup before separation and detection.
Ionic Liquid-Based Single-Drop Microextraction of Chlorobenzenes
March 4th 2009A research group from the University of Valencia (Valencia, Spain) and the University of Alicante (Alicante, Spain) used ionic liquid?based single-drop microextraction followed by gas chromatography (GC) to analyze chlorobenzenes in real water samples.
SPE and SFE in Analysis of Phenolic Compounds from Algae and Bacteria
February 2nd 2009A research group from the Mendel University of Agriculture and Forestry (Brno, Czech Republic) and the Academy of Sciences of the Czech Republic (Trebon, Czech Republic) combined solid-phase exraction (SPE) and supercritical fluid extraction (SFE) using an SPE cartridge incorporated in an SFE cell to extract benzoic acid and cinnamic acid derivatives from microalgae and cyanobacteria samples.
Hollow-Fiber Liquid-Phase Microextraction of Aromatic Amines
February 2nd 2009Researchers from the Chinese Academy of Sciences (Beijing, China) and the University of Science and Technology of China (Hefei, China) used a two- and three-phase hollow-fiber liquid-phase microextraction method to determine aromatic amines in environmental water samples.
Molecularly Imprinted SPME in Analysis of Beta Blockers
January 15th 2009Researchers from Sun Yat-sen University and South China Normal University (both in Guangzhou, China) developed a sample preparation method for extracting the beta-blockers propranolol, atenolol, pindolol, and alprenolol from human plasma and urine samples.
Mixed-Mode SPE Used in Analysis of Pharmaceuticals in Wastewater
January 15th 2009Researchers from Stockholm University (Stockholm, Sweden) and Nankai University (Tianjin, China) used a serial mixed-mode cation-exchange and anion-exchange solid-phase extraction (SPE) method to extract 15 basic, neutral, and acidic pharmaceutical compounds from wastewater.
Dispersive Liquid-Liquid Microextraction of Rose Water Components
January 15th 2009A research group from the University of Tehran (Tehran, Iran) used dispersive liquid?liquid microextraction coupled with gas chromatography to determine compounds in rose water, which is the hydrosol portion of the distillate of rose petals.
Solid-Phase Extraction in Food Lipid Analysis
January 15th 2009Scientists from the Swedish University of Agricultural Sciences (Uppsala, Sweden) and the University of Tabriz (Tabriz, Iran) developed a single-step solid-phase extraction (SPE) method to completely separate sterol oxidation products in food lipids.
Dispersive Liquid-Liquid Microextraction of Antibacterial Agent
January 15th 2009Researchers from Universidad de Santiago de Compostela (Santiago de Compostela, Spain) developed a dispersive liquid-liquid microextraction sample preparation method to determine the antibacterial agent triclosan and its environmental transformation product methyl triclosan in water samples.
Headspace Sampling for GC Ethanol Analysis
January 5th 2009A research group from the South China University of Technology (Guangzhou, Guangdong, China) and the Georgia Institute of Technology (Atlanta, Georgia) used a full evaporation headspace gas chromatography method to determine ethanol in fermentation liquor.
Organic Pollutant Extraction Method Comparison
January 5th 2009Researchers from the University of the Basque Country (Bilbao, Spain) have compared two extraction techniques as preparation methods for analyzing organic pollutants polycyclic aromatic hydrocarbons, polychlorinated biphenyls, phthalate esters, nonylphenols, polybrominated biphenyls, and polybrominated diphenyl ethers in water samples.