Brine saturation technique for extraction of light filth from rubbed and ground sage: intralaboratory study

An intralaboratory study was made of a new and widely applicable technique for isolating light filth from rubbed and ground sage. The technique eliminated the hazardous, costly, and lengthy pretreatment and isolation procedures of the current methodology and resulted in considerably better recoveries. Overall recovery of all filth elements introduced as spikes was 99.3% on the first trapping. The basic principle of the procedure is product saturation with brine, followed by trapping of the filth elements from tap water with oliver oil.