Supercritical fluid extraction and chromatography of aromatic amines

Supercritical Fluid Chromatography and Extraction

“…Brominated flame retardants in low-density polyethylene were determined with carbon dioxide after studying the influences of temperature, pressure, and methanol addition (569). Janda et al used SFE with SFC to characterize aromatic amines in rubber and other materials (570). Quantitative recovery was obtained from inert materials, but acidic matrices yielded poor results.…”

Analysis of low-molar-mass materials in commercial rubber samples by Soxhlet and headspace extractions followed by GC–MS analysis

“…Different liquid-phase extraction techniques are nowadays available, and many of these have been used to extract compounds from polymers, such as polypropylene and polyethylene, and sometimes rubbers. The conventional methods include stirring [17,18], refluxing [5,19,20], Soxhlet [11,[21][22][23][24][25][26][27], and sonication [28]. More recently, accelerated-solvent extraction (ASE) [29][30][31] and microwave-assisted solvent extraction (MASE) [32] have been introduced.…”