On the other hand, test tubes with NaCl with different concentrations were prepared, by means of commercial solutions of distilled water, 0.9% NaCl to 11.7% NaCl.
Por otro lado, se prepararon tubos de ensayo con NaCl de diferentes concentraciones mediante soluciones comerciales de agua destilada, de 0.9% NaCl a 11.7% NaCl.