"Concentration of benzo(k)fluoranthene {CAS 207-08-9} per unit dry weight of biota {Leptocharias smithii (ITIS: 160457: WoRMS 105804) [Subcomponent: muscle tissue]}"@en . . "SDN:P01::G0718952" . "The amount (mass or number of moles) of the specified analyte per unit weight of the specified organism or part thereof after water has been removed."@en . .