Supercritical Fluid Extraction of Strychnine Using Two Different Sequential Organic Modifiers

Supercritical Fluid Chromatography and Extraction

“…Snyder et al also investigated SFE to remove lipophilic pesticides from chicken tissues (466). To extract strychnine from oat grain bait, Kelly and Johnston used two sequential modifiers (467). Methanolmodified carbon dioxide was used during a static extraction step followed by dynamic extraction using chloroform modifier.…”

Comparison of Extraction Techniques, Including Supercritical Fluid, High-Pressure Solvent, and Soxhlet, for Organophosphorus Hydraulic Fluids from Soil

“…The low polarity of CO 2 , however, makes it an inappropriate extraction solvent for many environmental contaminants of moderate and greater polarity. Addition of polarity modifiers, both as single organic solvents and as mixtures, to the CO 2 can increase the effectiveness of extraction , but may require expensive pre-prepared solvent mixtures or secondary pumps for the modifier and complicate the postextraction analysis.…”