Liquid moving device for volatile liquid

Abstract

The invention discloses a liquid moving device for volatile liquid. Liquid movement is one of the common operations in the operation process of an experiment. The existing liquid moving device cannot prevent the volatile liquid from directly contacting with the outside air, so the liquid moving device for the volatile liquid is designed. In the liquid moving device for the volatile liquid, a liquid moving plug 1 is clamped on a liquid inlet pipe; the liquid inlet pipe is connected with a connecting plate 1 through a liquid guide pipe; the liquid inlet pipe and a gas guide pipe are on the same level; a baffle is positioned at the boundary position of the liquid guide pipe and the gas guide pipe; a rubber pipe is connected with the gas guide pipe and a liquid moving barrel; a piston rod and a piston are fixedly connected; a liquid outlet pipe is connected with the liquid guide pipe through a connecting plate 2; and a liquid moving plug 2 is clamped on the liquid outlet pipe. The liquid moving device for the volatile liquid is simple in structure and convenient to operate, and can effectively prevent the volatile liquid from directly contacting with the air in the liquid moving process so as to prevent the volatile liquid from volatizing to the air and avoid damage to human health.

Description

Technical field [0001] The invention relates to the field of experimental equipment, and more specifically to a pipetting device for volatile liquids. Background technique [0002] During the experimental operation, pipetting is one of the common operations. For volatile liquids, sometimes limited by the laboratory’s own conditions, it cannot be operated in a fume hood. When using a common pipetting device in the laboratory, the volatile liquid will directly contact the outside air and volatilize into the air, making the experiment The air in the room is contaminated, which may even harm the health of the operators. For example, in the process of testing chlorophyll in water, it is necessary to add acetone to extract chlorophyll. Acetone is volatile and has certain toxicity. Inhalation of human body will cause harm to human body. If it is not in a fume hood, use a common pipetting device in the laboratory to pipette acetone. , Acetone will volatilize into the air. At the same ...

AI Technical Summary

Problems solved by technology

For volatile liquids, sometimes limited by the laboratory's own conditions, it cannot be operated in a fume hood. When using a common pipetting device in the laboratory, the volatile liquid will directly contact with the outside air and volatilize into the air, making the experiment The air in the room is polluted, which may even damage the health of the operator

For example, in the process of testing chlorophyll in water, it is necessary to add acetone to extract chlorophyll. Acetone is volatile and has certain toxicity. Inhalation of the human body will cause damage to the human body. , acetone will volatilize into the air causing

At the same time, if the mouth of the reagent bottle filled with liquid is opened, the liquid will volatilize into the outside air, which will threaten the health of the operator.

Images