1. Different classification
Dropper: There are fat dropper and commonly used dropper. It consists of a rubber nipple and a pointed glass tube.
Glue head dropper: There are several forms of straight, straight with buffer ball and curved with buffer ball. The specifications of the plastic head dropper are expressed by the length of the tube, which are usually 90 mm and 100 mm. Each drop of plastic dropper is 0.05ml.
2. Different uses
Dropper: Pipette or add a small amount of reagent, and pipette the supernatant to separate the precipitate.
Glue-tip dropper: An instrument used to absorb or drip a small amount of liquid reagent.