July 11th 2024
Scientists from the Zheijiang University of Technology published a review article on the extraction of terpenoids from essential oils to determine what techniques can optimize enantiomer separation.
GC✕GC–TOF-MS Helps Quantify Pesticides in Water Susceptible to Contamination
April 28th 2023Pesticides in local surface and groundwaters were purified and enriched with solid-phase extraction, then analyzed using multidimensional gas chromatography coupled to mass spectrometry, with the results compared to those found by gas chromatography–quadrupole mass spectrometry.
Effective Detection of Antibiotic Residues in Environmental Matrices Using Nanosorbents
April 14th 2023The development of antibiotics needs to constantly be evolving to counter bacterial resistance that can develop against these medications. Solid-phase extraction (SPE) can be used to combat this challenge.
Sample Treatment in Routine Analysis: A Case Study: Sulphonamides in Liver
July 1st 2019Currently, sample treatment is still the bottleneck in the development of analytical methods to analyze complex samples, especially for routine analysis where high-tech instruments are not always available. Research on the evaluation of different sample treatments is needed to achieve the sensitivity and selectivity required. This article presents a case study related to the determination of sulphonamides in liver. Different extraction strategies, including solid-liquid extraction (SLE), ultrasound-assisted extraction (UAE), and solid-phase extraction (SPE), were evaluated to produce a simple and effective extraction method.
MS Detection of Waste in Public Swimming Facilities
October 3rd 2015Is your swimming pool clean and safe? Recreational water illness, most commonly in the form of digestive tract illness or skin, ear, or respiratory infections, is often caused by water contamination. The authors present a robust method, using solid-phase extraction and high-resolution mass spectrometry, for monitoring swimming pool water.
Headspace SPME Used to Analyze Cheese Flavors
July 15th 2008Researchers at Agriculture and Agri-Food Canada (St-Hyacinthe, Quebec, Canada) and McGill University (Ste-Anne-de-Bellevue, Quebec, Canada) used headspace solid-phase microextraction (SPME) in conjunction with gas chromatography?mass spectrometry (GC?MS) to measure flavor compounds in commercial cheddar cheese and enzyme-modified cheddar cheese.
Successful Extraction of Basic Drugs from Plasma Using Mixed-Mode Solid-Phase Extraction
February 29th 2008This article aims to demonstrate the unique capability of resin-based mixed-mode solid-phase extraction (SPE) to achieve efficient extraction of basic drugs from plasma. Optimized pore size of the method minimizes retention of high molecular weight matrix components present in the biological fluid samples. The interferences are removed, ensuring extremely clean extracts for subsequent liquid chromatography?mass spectrometry-mass spectrometry (LC-MS-MS) analysis.