Chemists from the University of North Dakota (Grand Forks, North Dakota) used solid-phase microextraction (SPME) to extract aldehydes from an aqueous solution.
Chemists from the University of North Dakota (Grand Forks, North Dakota) used solid-phase microextraction (SPME) to extract aldehydes from an aqueous solution. They evaluated several SPME techniques, including headspace extraction, liquid-phase extraction, and on-fiber derivatization. The liquid-phase SPME method was the optimal method, achieving limits of detection in the 0.1–4.4 µg/L for most of the analytes. Headspace SPME with an on-fiber derivatization was less sensitive and was unable to detect several compounds.
HPLC 2025 Preview: Functionalized Monoliths as Selective Sample Preparation Materials
May 16th 2025Analyzing trace compounds from complex samples often requires purification and pre-concentration, and online coupling of solid-phase extraction (SPE) with liquid chromatography (LC) helps minimize analysis time and solvent/sample use. Monoliths with large macropores are ideal for this coupling due to their low back pressure and versatility in various formats.
Thermodynamic Insights into Organic Solvent Extraction for Chemical Analysis of Medical Devices
April 16th 2025A new study, published by a researcher from Chemical Characterization Solutions in Minnesota, explored a new approach for sample preparation for the chemical characterization of medical devices.