. . "1" . "SDN:S03::S03181" . "2006-04-27 08:10:59.0" . . "false" . . "SDN:S03::S03181" . "SDN:S03::S03181" . "A dissolved radioactive or stable isotope tracer was added to the sample which was poisoned with azide (to eliminate biological activity), held for a predetermined time at the stated light intensity before filtration to collect the particulate phase as size fractions."@en . . "1" . "" . "accepted"@en . "2006-04-27 08:10:59.0" . "tracer doping, azide poisoning, incubation at 100uE/m2/s light level, cascade filtration"@en .