"Concentration of 2,2',5,5'-tetrachlorobiphenyl {PCB52 CAS 35693-99-3} per unit mass of lipids in the biota {Mytilus trossulus (ITIS: 567928: WoRMS 140482) [Subcomponent: flesh]}"@en . . "SDN:P01::LPCLP014" . "The concentration of the specified analyte in the specified organism or part thereof divided by the concentration of extractable lipids in the same sample."@en . .