Dear researchers,

The membran breaks up after a few minutes ultrasonication when I try to do gravimetric analysis to separate graphene from nylon membran. Because I want to do gravimetric analysis it have to dry in an oven (I use at 60-70 C). after dryng the graphene with membrane, grahene sheets stick to it. So, I use sonication to separete graphene from membrane but the membrane disintegrations during sonication process.