Hot Water Extraction of Antibacterials from Eggs
Researchers from Universita ?La Sapienza? (Rome, Italy) used a matrix solid-phase dispersion technique with hot water as the extracting solvent to extract seven quinolone antibacterial agents from egg samples.
Researchers from Universita “La Sapienza” (Rome, Italy) used a matrix solid-phase dispersion technique with hot water as the extracting solvent to extract seven quinolone antibacterial agents from egg samples. They used liquid chromatography with tandem mass spectrometry to analyze the extracted analytes. The researchers deposited the egg sample containing the analytes on crystobalite sand and packed it into an extraction cell. Acidified water was pumped through the cell, which was maintained at 100 °C. They validated the method in terms of ruggedness, specificity, linearity, within-laboratory reproducibility, and detection capability, and afterward conducted a depletion study of enrofloxacin and ciprofloxacin in eggs.
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.
