Your other hand should really keep the cylinder to prevent it from slipping. The tip from the eyedropper ought to be resting towards the inner area from the cylinder and slightly below the surface of your solvent layer. Alternatively, When you've got an alkali-resistant stopper, You need to use it https://damienqtvrk.get-blogging.com/36873932/not-known-details-about-buy-5-meo-copyright-usa