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Dropper

A dropper and drop-adding technology, which is applied in measuring tubes/pipettes, chemical instruments and methods, laboratory utensils, etc., can solve the problem of difficulty in controlling the amount of drops, expensive magnetic stirrers, and inability to absorb dripping Tween And other issues

Pending Publication Date: 2019-09-06
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When dripping with a dropper, part of Tween-80 sticks to the wall of the dropper, making it difficult to control the amount of dripping, and the needle of the syringe is too small to absorb and drop Tween-80
At present, it is mainly used to put block-shaped Tween-80 directly into water and stir it with a magnetic stirrer to speed up the dissolution of Tween-80 in water, but the magnetic stirrer is expensive, and some laboratories are not equipped

Method used

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Embodiment Construction

[0019] The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention. In addition, all connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the invention can be combined interactively on the premise of not conflicting with each other. ...

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Abstract

The invention relates to the field of experimental instruments, and discloses a dropper. The dropper comprises a suction tube and a core rod; the suction tube comprises a straight cylindrical part anda conical transition part which are sequentially connected from top to bottom, the lower end of the transition part is provided with a dropwise adding port, and the upper end of the straight cylindrical part is provided with an injection part; the core rod comprises a push rod and a piston which are sequentially connected from top to bottom, and the piston and the inner wall of the straight cylindrical part are in movable seal. The dropper has the advantages that the addition of organic matter with large viscosity can be achieved, and the organic matter is prevented from being attached to theinner wall of the dropper.

Description

technical field [0001] The invention relates to the field of experimental instruments, in particular to a dropper. Background technique [0002] It is difficult for some organic substances with high viscosity to be directly added to the solvent at room temperature, and it is difficult to dissolve quickly. The method of stirring while adding dropwise can speed up the dissolution. For example, polyoxyethylene sorbitan monooleate, referred to as Tween-80, becomes a jelly at low temperature, and it is difficult to dissolve quickly after mixing with water at room temperature. When dripping with a dropper, Tween-80 partly sticks to the wall of the dropper, making it difficult to control the amount of dripping, and the needle of the syringe is too small to absorb and drop Tween-80. At present, the main method is to put block-shaped Tween-80 directly into water and stir it with a magnetic stirrer to speed up the dissolution of Tween-80 in water, but the magnetic stirrer is expensiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/02
CPCB01L3/021
Inventor 钟帆李艳萍
Owner FOSHAN UNIVERSITY
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