"Concentration of chlorophyll-b {chl-b CAS 519-62-0} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC)"@en . . "SDN:P01::CHLBHPP1" . "The amount (mass or moles) of the specified pigment determined by HPLC assay of a sample collected by dissolution in acetone of the residue collected by GF/F filtration of a known volume of any water body. The quoted value either results from a single determination or the average of replicate determinations."@en . .