. . . . . . . . . . . . . . . . . . . . . . "2" . "false" . "The particulate phase was separated from the sample by filtration, treated with weak acid to remove labile elements then completely dissolved in a strong acid and analysed."@en . "SDN:S03::S03447" . . . "2016-07-21 12:13:46.0" . "acid digestion of leached filter residue"@en . . "2016-07-21 12:13:46.0" . "SDN:S03::S03447" . . . "" . "accepted"@en . . . "SDN:S03::S03447" . . . . . . . "2" . . . . . . . . . . . . . . . . . . . . . . .