label the date too. you will not remember which

swirl it. do not shake it. the foam is denatured protein and you are not getting it back

my vial pulled the water in on its own, is that the vacuum or did i do something

dead space

lyophilised powder is far more robust than people think. it is the solution that is fragile

thats fine

whats the smallest volume you would trust yourself to measure on a u100

how long after reconstituting before its actually dissolved

you can absolutely just always use 2ml, and honestly most of us should