Applet: Beyond THC and CBD: Solvent Free Headspace Extraction and GC-MS Profiling of Terpenes and Cannabinoids in Cannabis Flower and Products

Authors: Sage J. B. Dunham, Victoria L. Noad, Bailey S. Arakelian & Daniel B. Cardin Introduction Compositional analysis of products, including any contaminants present, from raw materials to finished products is crucial to ensure quality and safety. Headspace Sorbent Pens (HSPs) are used with the technique, Vacuum Assisted Sorbent Extraction (VASE), to extract volatile organic […]

Vacuum-Assisted Sorbent Extraction: An Analytical Methodology for the Determination of Ultraviolet Filters in Environmental Samples

Authors: María J. Trujillo-Rodríguez, Jared L. Anderson, Sage J. B. Dunham, Victoria L. Noad & Daniel B. Cardin Abstract Vacuum-assisted sorbent extraction (VASE) has been applied in combination with gas chromatography-mass spectrometry for the determination of UV filters in water samples. VASE is a variant of headspace extractionwhich was developed in conjunction with the sorbent […]

POSTER: Chemical Profiling of Cannabis Infused Products using Solvent-Free Headspace Extraction and Thermal Desorption GC-MS

Authors: Sage J. B. Dunham, Victoria L. Noad, Bailey S. Arakelian & Daniel B. Cardin Overview A solvent free headspace extraction approach – vacuum assisted sorbent extraction (VASE) – is applied in combination with thermal desorption (TD)-gas chromatography-mass spectrometry (GC-MS) to examine the chemical composition of cannabis and cannabis infused consumer products.   Application of VASE […]

POSTER: Cannabinoid & Terpene Profiling of Cannabis by Solvent-Free Headspace Extraction and Thermal Desorption-GC-MS

Authors: Sage J. B. Dunham, Victoria L. Noad, Bailey S. Arakelian & Daniel B. Cardin Overview The specific chemical composition of cannabis is responsible for the fragrance and flavor of the product, the experience of a recreational high, and the medicinal benefit.   In a phenomenon known as the “entourage effect”, evidence further suggests that compounds […]

POSTER: Trace-Level Quantification of SVOCs in Water via Vacuum Assisted Sorbent Extraction (VASE) Thermal Desorption-GC-MS

Authors: Sage J. B. Dunham, Victoria L. Noad, Bailey S. Arakelian & Daniel B. Cardin Overview Current analytical methods for evaluating volatile and semi volatile organic compounds (VOCs & SVOCs) in water often require large sample volumes (1 L or more), are labor intensive, and rely upon liquid-liquid extraction into organic solvents. Here we present a sensitive, […]

POSTER: Vacuum Assisted Sorbent Extraction (VASE) Thermal Desorption-GC-MS: A Robust, Solvent-Free Technique for Chemical Residue Analysis

Authors: Sage J. B. Dunham, Victoria L. Noad, Bailey S. Arakelian & Daniel B. Cardin Overview In the 30 years since the invention of solid phase microextraction (Belardi & Pawliszyn, 1989), headspace (HS) extraction has developed into a powerful family of techniques for both targeted and untargeted chemical analysis of volatile and semi volatile compounds. We recently developed […]

POSTER: Vacuum Assisted Sorbent Extraction (VASE) and a Dual-Column Thermal Desorption Approach for GC-MS Analysis of Trace-Level Polycyclic Aromatic Hydrocarbons (PAHs)

Authors: Victoria L. Noad, Sage J. B. Dunham, and Daniel B. Cardin Overview  • A new instrument design and methodology for trace-level headspace analysis of polycyclic aromatic hydrocarbons (PAHs) is described. • Using a 1 mL sample of water, quantitation from 5 ppt – 10 ppb is demonstrated for a wide range of polycyclic aromatic hydrocarbons […]

POSTER: Solvent-Free Terpene & Cannabinoid Profiling of Cannabis Consumer Products using Vacuum Assisted Sorbent Extraction (VASE) Thermal Desorption-GC-MS

Authors: Victoria L. Noad, Sage J. B. Dunham, and Daniel B. Cardin Overview Due to recent legislative changes, consumption of cannabis products are becoming accepted as a medical treatment and a mainstream recreational product worldwide including many US states and Canada.   Reliable analytical methods are critical to ensuring consistent dosing, efficacy, and safety. Current techniques […]

Use of Sorbent-Based Vacuum Extraction for Determination of Volatile Phenols in Beer

Use of Sorbent-Based Vacuum Extraction for Determination of Volatile Phenols in Beer

Solvent Free Extraction Technique for Determination of Semi-Volatile Organic Compounds in Water Samples by EPA Method 8270

Solvent Free Extraction Technique for Determination of Semi-Volatile Organic Compounds in Water Samples by EPA Method 8270