Cellulose acetate (CA) as polymer, glycerol derivatives (namely triacetin, diacetin, monoacetin or glycerol-formal) solvents and 2-methyltetrahydrofuran (2-MeTHF) co-solvent were selected bio-based ingredients for the preparation of full-bio-based nanofiltration membranes via non-solvent induced phase separation (NIPS). Membrane performance was investigated using an aqueous rose bengal (1017Da)...

Abstract Artefact-avoiding isolation of the volatiles from foods is a crucial step before analysis odour-active compounds by gas chromatography (GC). In past 20 years, solvent extraction followed solvent-assisted flavour evaporation (SAFE) has become standard approach, particularly prior to GC–olfactometry. The manual valve SAFE equipment, however, leads suboptimal yields and risk contamination...

This study evaluated exposures among vehicle repair technicians to hexane, acetone, toluene, and total volatile organic compounds (VOCs). On randomly selected workdays, we observed a characteristic pattern of solvent use among 36 technicians employed in 10 repair shops, each of which used an aerosol solvent product. We obtained quantitative exposure measurements from a subset of nine technician...

To characterize the role of hen eggs used for analyzing the insect Mylabris phalerata a traditional Chinese medicine for curing liver cancer, egg white was separated from the whole egg and added to M. phalerata. The volatile compounds found in egg white when added to M. phalerata and therefore in M. phalerata itself were analyzed by GC. Cantharidin was detected both in egg white added to M. pha...

u: Alternative chemical strippers have been evaluated to determine the potential effects on air emissions resulting from solvent changes in the fumiture repair and refinishing industry. Alternative chemical strippers used to remove both traditional and emerging low-VOC (volatile organic compound) wood coatings were evaluated. Phase 1 was a laboratory evaluation of five chemical stripper combina...