. . . . "the qualitative and/or quantitative description of the chemical elements present in a substance or material." . . . "Elemental composition" . "elemental composition of material" . . . . "Christos Vasileiou" . "2026-01-27T10:21:31.342Z"^^ . . . . . . . . . . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1OobdRASd9SftHrLhG905OXjv8DHndvyWzXRJ5EDFPankMSnHZPHK+g2qEeRWdonstt55CLrpTpWsVv9xRtTqPidXHbnWLBXX42iCB+EnZNoKqAVKF5GxkSR38S0uTTq3aeQJbw2kTpx6LMkspmuH95fgAI/lfqPWrxdlI98jIeHQ14UXZpiWmkkvPgC9GVgmwHiG1hB/NCA2fKCOxVodN44OfhAPtkWmPJ40IcGPSalI4HRqgLLI5PabdRk3PiG81cUngmQU1Xk6EapzkRJGenkOlGsC5L4ktEPO6LS9uBMLTMLQDtGtkrcwqg5HmeKv7Ili3vgr3LL8/GaBBOLQIDAQAB" . "IlYXq3TaS7Z3fUA766JV5bygixdTwOKDuU02Pg4fnw3crH+1QU3SIFL+zxVxmcoIgUEFrB7ETDbMgIU7osJgBTbWRtHUCalXj+P47CEc3euFswP47d18sAteXbylhpWYmkrPYkeRXnVu3XP9iHiVbV/wVTCjHYhNDhXXK0U7Tb41AVMGRLPfqYO3foQs1IYsdwP4jtjgC5tzWTL9bNYNTWXkxwdb7bmJ9Scnb6H8JseFNlzGazVCq7FZ71iON9UEm79HLqAPBWqFeudJFj5nAmQ84uRJ8tOJwlXyU2B1TijoNNZsSgJUZceaTHhhf/Vavq4pk9L7rP4BsNZWGgm57Q==" . . .