WebSolid phase extraction (SPE): ... THC). GC-MS column types Gas chromatography is used to separate sample components and remove background contamination prior to mass spectrometry. Columns are typically made of metal or fused silica and coated with a variety of liquid films; the liquid film is called the stationary phase. Packed columns, which ... Web1 Oct 2001 · This method utilized a positive pressure manifold anion-exchange polymer-based solid-phase extraction followed by elution directly into the automated liquid sampling (ALS) vials. Rapid derivitization was accomplished using pentafluoropropionic anhydride/pentafluoropropanol (PFPA/PFPOH).
Analysis of Cannabinoids in Biological Specimens: An Update
WebSolid-phase. Solid phase cannabis extraction is a method that has both a mobile and a stationary phase. These two phases work in conjunction to extract the cannabinoid compounds or other compounds you’re targeting. The stationary phase and mobile phase will vary drastically depending on the results you are trying to achieve. WebA new approach for the rapid analysis of inorganic Se (i-Se: Se-IV and Se-VI) in an aqueous acidic matrix is proposed. A supramolecule-equipped solid-phase extraction (SPE) system is used for the ion immi what we do status
A Sensitive and Efficient Method to Analyze THC and THCCOOH in …
WebSolid Phase Extraction (SPE) Solid phase extraction (SPE) is a technique designed for rapid, selective sample preparation and purification prior to the chromatographic analysis (e.g. HPLC, GC, TLC). In SPE, one or more analytes from a liquid sample are isolated by extracting, partitioning, and/or adsorbing onto a solid stationary phase. Web6 Jun 2024 · The analyte — THC in this case — must have a greater affinity for the solid phase than the liquid matrix. The analyte is then eluted from the solid phase. Study … Web1 Apr 2024 · For instance, sequential SFE and solid phase extraction (SPE) processes allowed THC to be extracted at a purity level suitable for quality control, where SPE was used as a purification technique ... immiworld global immigration