Of course not. Both ways work.Wow, so all those years I spent using a micropipette for delivering µl, and a Mettler microbalance for weighing my µgm I was doing it wrong?![]()
Sometimes by volume is better, sometimes by weight; depends on what you´re doing. But saying you always measure liquids by volume is wrong.
And not that its needed for our purposes, but in general by weight is more precise then by volume.