Have decades of abiotic studies in sediments been misinterpreted? (CROSBI ID 278589)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Layglon, Nicolas ; Misson, Benjamin ; Mounier, Stéphane ; Lenoble, Véronique ; Omanović, Dario ; Garnier, Cédric
engleski
Have decades of abiotic studies in sediments been misinterpreted?
Sterilization techniques are largely employed to distinguish biotic and abiotic processes in biogeochemical studies as they inhibit microbial activity. Since one century, chemical sterilizers, supposed to preserve original environmental samples, have taken precedence over physical sterilization techniques considered too destructive. Sodium azide (NaN3) is nowadays the most commonly used inorganic chemical sterilizer. It is sufficiently purified to study trace metals, as well. Nevertheless, its (in)activity in physico- chemical processes was never ascertained. Through the investigation of sediment resuspension in seawater, the present work unequivocally demonstrated that NaN3 can impact carbon and trace metals' transfers by altering the redox balance and pH. Unlike decades of blind practice, NaN3 should be used with great care to track abiotic processes from organic matter rich and reductive matrices.
Sodium Azide ; Sediment ; Mixing ; Impact ; Organic matter ; Metals
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
707
2020.
135949
6
objavljeno
0048-9697
1879-1026
10.1016/j.scitotenv.2019.135949
Povezanost rada
Interdisciplinarne prirodne znanosti, Kemija