Abstract:
In an apparatus for automatically filling a pipette according to the present invention, only a predetermined air is supplied to a pipette assembly to which a substance is discharged, even if an excessive operation force is applied by a user, so it is possible to prevent a waste of the substance being unnecessarily discharged.
Abstract:
According to an apparatus for automatically Ming a pipette of the present invention, a pipette is filled with a substance when being coupled to a container, so a user can easily use it without a specific action for filling the pipette with the substance. Farther, an indicator is exposed through a button to a user when the pipette is filled with the substance, so the user can directly recognize whether the pipette is filled with the substance.
Abstract:
Disclosed are a method for producing a dialkoxymagnesium support for catalyst for olefin polymerization, a method of producing catalyst for olefin polymerization using the dialkoxymagnesium support and a method of polymerizing olefin using the catalyst. By using the method for producing a support according to the present invention, the content of large particles in the dialkoxymagnesium support can be controlled and the particle can have spherical shape, so the catalyst produced by using the support have high activity and stereoregularity, and high bulk density, thereby making it possible to be applied to the commercial processes.