Burette

A burette and titration technology, which is applied in the field of laboratory equipment, can solve problems such as difficult removal of air, and achieve the effect of counting titration

Inactive Publication Date: 2010-06-09
常春元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention adopts the structure of adding a branch pipe on the titration scale tube, and setting a piston in the branch pipe, which solves the defect that the air is not easily removed in the prior art

Method used

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Effect test

Embodiment Construction

[0008] figure 1 Shown, the present invention is made up of burette scale tube 5 and buffer ball 4 positioned on the burette scale tube 5, and the control valve 1 positioned at the top of the burette scale tube 5, and above structure is prior art. The inventive point of the present invention is to add a pipe 2 on the top of the titration scale tube 5, the middle part of the branch pipe 2 is provided with a piston 3, and the end of the branch pipe 2 has an exhaust port. After gas is generated in the titration scale tube 5, the operating piston 3 can The gas is discharged, and the use is very convenient and reliable. The bottom of the titration scale tube 5 is covered with a plastic dropper 6, which can precisely control the titration amount and realize microburette titration. This dropper 6 also can be made into the matching dropper 6 of size according to different needs, to satisfy the needs of numerous users.

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PUM

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Abstract

The invention discloses a burette which is easy to exhaust air and can realize accurate counting titration. The burette comprises a titration graded tube, a buffer ball arranged on the titration graded tube and a control valve on the top of the titration graded tube, wherein the upper part of the titration graded tube is provided with a branch tube internally provided with a piston, and the tail end of the branch tube is provided with a vent port; and the bottom of the titration graded tube is provided with a drip tube. The burette has a structure that the branch tube is arranged on the titration graded tube, and the piston is arranged in the branch tube and overcomes the defect of difficult air exhaust. The lower part of the titration graded tube is sleeved with the drip tube so as to exactly control the titration quantity and realize the counting titration of the burette.

Description

technical field [0001] The invention relates to a laboratory appliance, in particular to a burette. Background technique [0002] The burette is a commonly used and necessary container in the laboratory. A commonly used burette is an elongated tubular container with a stopcock at one end and marked with graduations to indicate the measurement. Generally, the reading on the upper scale is smaller, and the reading on the bottom is larger. In experiments and assays, there is a phenomenon that air bubbles are easily generated, and the orifice is large and cannot be adjusted, resulting in errors when reading the scale. Therefore, it is not suitable for capillary microburette titration. Contents of the invention [0003] The object of the present invention is to provide a buret that is easy to remove air and can realize accurate metering and titration. [0004] The technical solution of the present invention is: comprising a burette scale tube, a buffer ball positioned on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/02G01N31/18
Inventor 常春元
Owner 常春元
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