This procedure was repeated twice. Next, 100 µL of NH4HCO3 at a concentration of 50 mM was introduced and centrifuged, and the collection liquid was removed. The process was performed three times in ...

Department of Chemistry I.F.M. and Center of Excellence NIS, University of Turin, Consortium INSTM, Research Unit of Turin University, Via P. Giuria 7, 10125 Torino, Italy, and Department of Physical ...

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