CN206906332U - A kind of Pharmaceutical Analysis titration outfit - Google Patents

Abstract

The utility model relates to a drug analysis and titration device, which comprises a support, a magnetic stirrer, an analysis bottle, a burette and a liquid addition bottle; a burette is fixed on the support, and the analysis bottle is arranged on the magnetic stirrer; The end is set in the analysis bottle, the analysis bottle is provided with a magnet, the mouth of the liquid feeding bottle is sealed with a bottle stopper, the bottle stopper is provided with a pressurizer, and the mouth of the liquid feeding bottle is sealed with a bottle stopper. A liquid pipe, one end of the liquid-feeding pipe extends into the liquid-feeding bottle, and the other end of the liquid-feeding pipe is connected with a burette; the burette includes a burette body, a liquid-fixing head and a burette. The utility model can change the big and small heads for titration, and has the advantages of convenient liquid addition and accurate analysis.

Description

A drug analysis titration device

technical field

The utility model relates to the technical field of chemical analysis, in particular to a medicine analysis and titration device.

Background technique

Titration analysis is often used in drug analysis. At present, during the titration process, the analysis bottle containing the liquid to be analyzed is mostly manually shaken, which is easy to shake unevenly, resulting in inaccurate analysis results. During titration, the burette generally has only one titration tip. When the titration tip is larger, more liquid will be dripped at one time, which will easily lead to excessive titration solution consumption and inaccurate final analysis. Need to add liquid to the burette after the titration is completed, directly pour liquid in the burette, it is easy to overflow, and the liquid above the zero scale in the burette is discharged from the burette, wasting liquid. If the added liquid level is below the zero scale, it is necessary to add liquid again, and the operation is troublesome.

Utility model content

In order to solve the above problems, the utility model provides a medicine analysis and titration device which can switch between large and small heads for titration, which is convenient for liquid addition and accurate in analysis.

Technical scheme of the utility model:

A medicine analysis titration device, comprising a bracket, a magnetic stirrer, an analysis bottle, a burette and a liquid addition bottle; a burette is fixed on the bracket, the analysis bottle is set on the magnetic stirrer, and the end of the burette is set In the bottle, a magnet is arranged in the analysis bottle, a bottle stopper is sealed at the mouth of the liquid feeding bottle, a pressurizer is arranged on the bottle stopper, and a liquid feeding tube is sealed at the mouth of the liquid feeding bottle. One end of the liquid-feeding pipe extends into the liquid-feeding bottle, and the other end of the liquid-feeding pipe is connected with the burette; the burette includes a burette body, a constant liquid head and a burette head, and the burette body is provided with a scale line, so The thin tube protruding from the side wall of the burette body is smaller than the inner diameter of the burette body. The connection of the burette head is completely blocked with a cock, the lower part of the burette body is provided with a burette, and the junction of the burette body and the burette is provided with a control valve for controlling the flow of the titrant in the burette.

Further, the inner diameter of the constant liquid head is 1/5 to 1/3 of the inner diameter of the titration head.

Further, a scale is provided on the side wall of the liquid addition bottle.

Further, the analysis bottle is provided with an upper cover with holes, and the upper cover is provided with a titration hole.

Further, the bracket is provided with iron clips for fixing the analysis bottle.

Further, a cross clamp for fixing the burette is provided on the bracket.

The beneficial effects of the utility model:

The analysis bottle of the utility model is set on the magnetic stirrer, the end of the burette is set in the analysis bottle, the analysis bottle is provided with magnets, the stirring is more uniform, and the analysis bottle does not need to be manually shaken, saving time and effort, and the analysis is more accurate ; The mouth of the filling bottle is sealed with a cork, the cork is provided with a pressurizer, the mouth of the filling bottle is sealed with a filling tube, and one end of the filling tube extends into the filling bottle , the other end of the liquid feeding tube is connected with the burette, which is convenient for adding liquid to the burette, can accurately control the amount of liquid added, and is convenient for adding liquid; The inner diameter of the titration head is 1/5 to 1/3 of the inner diameter of the titration head. At the end of the titration, the liquid head can be replaced for titration, and the titration end point is more accurate. The analysis bottle is provided with an upper cover to prevent liquid from splashing out; the support is provided with an iron clip for fixing the analysis bottle, making the stirring process more stable.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the accompanying drawings, 1-bracket, 1-1-cross clip, 1-2-iron clip, 2-magnetic stirrer, 3-analytical bottle, 3-1-magnet, 3-2-upper cover, 3- 3-Bitration hole, 4-1-burette body, 4-2-fixed liquid head, 4-3-titrated head, 4-4-thin tube, 4-5-cock, 4-6 control valve, 5-liquid addition Bottle, 5-1-bottle stopper, 5-2-pressurizer, 5-3-dosing tube.

detailed description

As shown in Figure 1, a kind of medicine analysis titration device comprises support 1, magnetic force stirrer 2, analysis bottle 3, burette and liquid addition bottle 5; Described support 1 is fixed with burette, and described analysis bottle 3 is arranged on magnetic On the stirrer 2, the end of the burette is arranged in the analysis bottle 3, the magnet 3-1 is arranged in the analysis bottle 3, and the bottle stopper 5-1 is sealed in the liquid addition bottle mouth 5, and the bottle stopper 5-1 is sealed. A pressurizer 5-2 is arranged on the plug 5-1, and a liquid feeding pipe 5-3 is sealed on the mouth of the liquid feeding bottle 5, and one end of the liquid feeding pipe 5-3 extends into the liquid feeding bottle 5, The other end of the liquid-feeding pipe 5-3 is connected with a burette; the burette includes a burette body 4-1, a constant liquid head 4-2 and a burette head 4-3, and the burette body 4-1 is provided with a scale mark , the thin tube 4-4 that protrudes from the side wall of the burette body 4-1 is smaller than the inner diameter of the burette body 4-1, and the end of the thin tube 4-4 is provided with a vertically downward constant liquid head 4-2, The fixed liquid head 4-2 is provided with a vertically downward stopcock 4-5 that completely blocks the connection between the end of the thin tube 4-4 and the fixed liquid head 4-2, and the burette body 4-1 The lower part is provided with a burette 4-3, and the junction of the burette body 4-1 and the burette 4-3 is provided with a control valve 4-6 for controlling the flow of the titrant in the burette.

The inner diameter of the fixed liquid head 4-2 is 1/5 to 1/3 of the inner diameter of the titration head 4-3. A scale is arranged on the side wall of the liquid addition bottle 5 . The analysis bottle 3 is provided with an upper cover 3-2 with holes, and the upper cover 3-2 is provided with a titration hole 3-3. The support 1 is provided with an iron clip 1-2 for fixing the analysis bottle 3. The bracket 1 is provided with a cross clip 1-1 for fixing the burette.

When in use, first fix the burette and analysis bottle 3 on the support 1, put the magnet 3-1 into the analysis bottle, adjust the positions of the burette and analysis bottle 3 on the support 1, and place the analysis bottle 3 on the magnetic stirrer 2, the end of the burette is aligned with the mouth of the analysis bottle 3, check the scale on the liquid addition bottle 5, and then press the pressurizer 5-2 by hand to pressurize, and the liquid in the liquid addition bottle 5 will Filling tube 5-3 enters the burette body 4-1, when the liquid level in the buret body 4-1 is at zero scale, stop pressurizing, check the scale on the liquid adding bottle 5, the subtraction of the two scales is The amount of titrating solution below the zero scale in the burette body 4-1, and then press the pressurizer so that the liquid in the liquid addition bottle enters the burette body 4-1 again along the liquid addition tube 5-3 for titration again. The titration is carried out through the control valve 4-6. When the titration is approaching the end point, the titration head 4-2 is changed for titration, and the amount of the titration liquid used is observed at the end point of the titration for calculation and analysis.

The above description of the utility model is illustrative rather than restrictive. Those skilled in the art understand that many modifications, changes or equivalents can be made to it within the spirit and scope of the claims, but they will all fall into the Into the protection scope of the present utility model.

Claims (6)

1. a medicine analysis titration device, is characterized in that, comprises support (1), magnetic stirrer (2), analysis bottle (3), burette and liquid addition bottle (5); Described support (1) is fixed with A burette, the analysis bottle (3) is set on the magnetic stirrer (2), the end of the burette is set in the analysis bottle (3), and the analysis bottle (3) is provided with a magnet (3-1) , the mouth of the liquid filling bottle (5) is sealed with a bottle stopper (5-1), the bottle stopper (5-1) is provided with a pressurizer (5-2), and the liquid filling bottle (5) The mouth is sealed with a liquid feeding pipe (5-3), one end of the liquid feeding pipe (5-3) extends into the liquid feeding bottle (5), and the other end of the liquid feeding pipe (5-3) is connected to the burette Connect; the burette includes a burette body (4-1), a constant liquid head (4-2) and a burette head (4-3), the burette body (4-1) is provided with a scale mark, and the burette body (4-1) A thin tube (4-4) with a smaller inner diameter than the buret body (4-1) protruding from the side wall, and the end of the thin tube (4-4) is provided with a vertically downward constant liquid head ( 4-2), the fixed liquid head (4-2) is provided with a cock (4- 5), the lower part of the burette body (4-1) is provided with a burette (4-3), and the junction of the burette body (4-1) and the burette (4-3) is provided with a device for controlling the inside of the burette. The titrant flows down the control valve (4-6). 2. A kind of medicine analysis titration device according to claim 1, is characterized in that, the inner diameter of described liquid constant head (4-2) is 1/5 to 1/3 of the inner diameter of titration head (4-3). 3. A drug analysis and titration device according to claim 1, characterized in that a scale is arranged on the side wall of the liquid addition bottle (5). 4. a kind of medicine analysis titration device according to claim 1, is characterized in that, described analytical bottle (3) is provided with the upper cover (3-2) with hole, described upper cover (3-2) 2) A titration hole (3-3) is arranged on it. 5. A drug analysis and titration device according to claim 1, characterized in that, the bracket (1) is provided with an iron clip (1-2) for fixing the analysis bottle (3). 6. A drug analysis and titration device according to any one of claims 1-5, characterized in that a cross clamp (1-1) for fixing the burette is arranged on the support (1).