- Extraction of beads with hexane:oil 1:1, in [[Levy _et al._, 2005|biblio/16131588]] (oil: mineral, superfactant: 5.5% Span 80, 0.5% Tween 80, 0.1 % TritonX-100).
Different kinds of superfactants:
+
- TritonX-100, Span 80, Tween 80 (many articles),
- ABIL WE09 (polysiloxane–polycetyl–polyethylene glycol copolymer; primary paper: [[Dielh _et al._, 2004|biblio/14990785]])
- Sun Soft No. 818SK (polyglycerol esters of intersesterified ricinoleic acid; primary paper: [[Kojima _et al._, 2005|biblio/16214800]])