. . . . . . . . . . . . . . . . . . . "Spectrophotometric assay following the Lorenzen protocol of acetone extract from particulates on a GF/F filter filtering water previously filtered through a 5um pore filter."@en . . . "LorSpec_Chl-a_GFF-5um" . . . "accepted"@en . . "SDN:P01::SCHLSPPM" . "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate GF/F-5um phase] by filtration, acetone extraction and spectrophotometry and processing following the Lorenzen protocol"@en . . . . . . . .