Extraction of Oil and Grease from Water Samples Using Automated Solid-Phase Extraction
EPA Method 1664, Revision A describes the determination of oil and grease from liquid (typically water) samples.
EPA Method 1664, Revision A, n-Hexane Extractable Material (HEM; Oil and Grease) and Silica Gel-Treated Hexane Extractable Material (SGT-HEM; Non‑polar Material) by Extraction and Gravimetry, describes the determination of oil and grease from liquid (typically water) samples.
University of Rouen-Normandy Scientists Explore Eco-Friendly Sampling Approach for GC-HRMS
April 17th 2025Root exudates—substances secreted by living plant roots—are challenging to sample, as they are typically extracted using artificial devices and can vary widely in both quantity and composition across plant species.
Sorbonne Researchers Develop Miniaturized GC Detector for VOC Analysis
April 16th 2025A team of scientists from the Paris university developed and optimized MAVERIC, a miniaturized and autonomous gas chromatography (GC) system coupled to a nano-gravimetric detector (NGD) based on a NEMS (nano-electromechanical-system) resonator.
Characterizing Plant Polysaccharides Using Size-Exclusion Chromatography
April 4th 2025With green chemistry becoming more standardized, Leena Pitkänen of Aalto University analyzed how useful size-exclusion chromatography (SEC) and asymmetric flow field-flow fractionation (AF4) could be in characterizing plant polysaccharides.
