. . . . "the qualitative and/or quantitative description of the chemical elements present in a substance or material." . . . "Elemental composition" . . . . "Christos Vasileiou" . "2026-01-12T14:00:19.577Z"^^ . . . . . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1OobdRASd9SftHrLhG905OXjv8DHndvyWzXRJ5EDFPankMSnHZPHK+g2qEeRWdonstt55CLrpTpWsVv9xRtTqPidXHbnWLBXX42iCB+EnZNoKqAVKF5GxkSR38S0uTTq3aeQJbw2kTpx6LMkspmuH95fgAI/lfqPWrxdlI98jIeHQ14UXZpiWmkkvPgC9GVgmwHiG1hB/NCA2fKCOxVodN44OfhAPtkWmPJ40IcGPSalI4HRqgLLI5PabdRk3PiG81cUngmQU1Xk6EapzkRJGenkOlGsC5L4ktEPO6LS9uBMLTMLQDtGtkrcwqg5HmeKv7Ili3vgr3LL8/GaBBOLQIDAQAB" . "C7a+1Gtpnr6FNM4exRY4Bcpp3sK40qViZe5teMKE0oIbCEpdqRyoeBpGykVviGEbReMs0Iy+7ATBkN1oNsgBX2lcpy0rE1VtQsMjQV+r6leArrd4I0AF7YdKLq2rYW1Rl5ZQ3BwzC440BS7JVwut6qpStHm7NrMZUCDT5/ejQks7efpD/u+OHVT63hNpjOpvJs/PCk2STr3qX9juYXeFTtohw5siFkkQOU0KibnOqBbUfWl/pmBvum+RyqjUpEv0o3CKxJG6P4xMFlRKSfF3sBc4BBEjL/jXa3gYOzYRvKnzuUBe3h9pQcISyOXsJWZ8r2eZphQhC7gf5Ni+vYNMFg==" . . .