Analysis of Phenolic Compounds in Water
Chemists from Normal University and Wuhan University (both Wuhan, China) used an improved liquid-liquid-liquid microextraction method in the analysis of four phenolic compounds in water.
Chemists from Normal University and Wuhan University (both Wuhan, China) used an improved liquid-liquid-liquid microextraction method in the analysis of four phenolic compounds in water. They used a vial insert as the acceptor phase container. The small diameter of the bottom of the vial insert caused a larger contact area between the acceptor phase and the vial insert and reportedly enabled increased the stability of the microdrop. Because more acceptor phase could be held in the improved method, the sensitivity was also increased. The researchers chose aqueous ammonia as the acceptor phase and toluene as the organic phase.
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.
