M03.001 Gravimetric determination of low volatile lipophilic substances

Alina Stahl & Heike Frerichs
For the gravimetric determination of low volatile lipophilic substances, which can be suspended, emulsified or dissolved in water, samples are extracted with petroleum benzine. By means of a micro separator the upper organic layer is separated and traces of water are removed with sodium sulfate as drying agent. After evaporation, the amount of low volatile lipophilic substances is determined by weighing. Results are reported in mg/l.
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