Waste liquid bottle for liquid chromatograph

Abstract

The utility model relates to a waste liquid bottle for a liquid chromatograph, and belongs to the field of experimental appliances for chemical analysis. The waste liquid bottle is composed of a waste liquid bottle body, a bottle cap and a liquid level indicator, a waste liquid pipe opening and a liquid level indicator opening are formed in the bottle cap, an outer screw cap is arranged outside the liquid level indicator opening, and the lower end of a waste liquid pipe is inserted into a bottle opening of the waste liquid bottle through the waste liquid pipe opening; the liquid level indicator is composed of a hollow ball and an indication sheet, the hollow ball is fixedly connected to the lower end of the indication sheet, a ball body of the hollow ball is arranged at the bottom of the waste liquid bottle body, and the indication sheet can enter the outer screw cap through the liquid level indicator opening in the bottle cap. The device can prompt experimenters about the residual volume in the waste liquid bottle, facilitates timely replacement, and prevents waste liquid from overflowing; a waste liquid pipe enters the waste liquid bottle through the circular hole to form a closed environment, and volatilization of organic reagents is reduced.

Description

Technical Field

[0001] The utility model relates to a waste liquid bottle for a liquid chromatograph, which is used for collecting waste liquid of the liquid chromatograph and indicating the remaining volume in the waste liquid bottle, and belongs to the field of experimental tools for chemical analysis. Background Art

[0002] In the analysis of organic compounds, liquid chromatography is one of the most commonly used analytical methods. With the development of technology, instruments such as reverse phase chromatography, normal phase chromatography, ion chromatography, and liquid chromatography-mass spectrometry have been developed. What these instruments have in common is that they need to use liquid as the mobile phase. For example, the mobile phase used in reverse phase chromatography is usually water, methanol, acetonitrile and other reagents, and the mobile phase used in normal phase chromatography is usually hexane, chloroform and other reagents. In order to improve the separation effect, ion pair reagents, buffer salts, acids, bases and other substances are also added to change the retention of the substance to be tested on the chromatographic column, so a large amount of waste liquid is generated during actual use.

[0003] The waste liquid bottles commonly used currently have the following problems: (1) there is no bottle cap with an opening on the top to place the waste liquid tube, and the sealing effect is poor; (2) there is no volume prompt function, and it is difficult to judge whether the remaining volume in the waste liquid bottle meets the test requirements. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a waste liquid bottle for liquid chromatograph, which can indicate the liquid level. In addition to collecting the waste liquid flowing out of the instrument, the added liquid level indicator can clearly remind the experimenter of the remaining volume in the waste liquid bottle to prevent the waste liquid from overflowing. The customized bottle cap with an opening on the top is convenient for the placement of the waste liquid tube and the liquid level indicator, while ensuring the sealing of the entire waste liquid bottle, which can effectively reduce the escape of volatile organic substances in the waste liquid during long-term storage.

[0005] A waste liquid bottle for a liquid chromatograph mainly consists of a waste liquid bottle body, a bottle cap and a liquid level indicator. The bottle cap is provided with a waste liquid pipe opening and a liquid level indicator opening. An outer screw cap is provided outside the liquid level indicator opening. The lower end of the waste liquid pipe is inserted into the bottle mouth of the waste liquid bottle through the waste liquid pipe opening. The liquid level indicator consists of a hollow ball and an indicator sheet. The hollow ball is fixedly connected to the lower end of the indicator sheet. The hollow ball body is arranged at the bottom of the waste liquid bottle body. The indicator sheet can enter the outer screw cap through the liquid level indicator opening on the bottle cap.

[0006] The waste liquid bottle body is also provided with a liquid level scale and a handle. The waste liquid bottle body is composed of a cylindrical bottle body and a trapezoidal cylindrical bottleneck, the liquid level scale is provided on the cylindrical bottle body, and the handle is provided on the outside of the trapezoidal cylindrical bottleneck, which is convenient for lifting and pouring and is easy to use.

[0007] The waste liquid bottle body is made of brown high borosilicate glass, with a capacity of 4.5L to 10.5L, a bottle mouth diameter of 3.5cm, a bottle body diameter of 16.04cm to 25.6cm, a total height of 34cm, and has good corrosion resistance, acid and alkali resistance.

[0008] The bottle cap is made of polytetrafluoroethylene and can be sealed on the bottle mouth of the waste liquid bottle body. The waste liquid pipe opening and the liquid level indicator opening arranged on the top are both circular. The diameter of the waste liquid pipe opening is 0.8 cm, and the diameter of the liquid level indicator opening is 0.9 cm.

[0009] The liquid level indicator opening is provided with a transparent outer screw cap in a cylindrical shape. The top of the transparent outer screw cap is closed, and the bottom is fixed on the waste liquid bottle cap by threads for observing the indicator sheet. The length of the transparent outer screw cap is 32 cm and the diameter is 0.7 cm. The transparent outer screw cap is fixed on the waste liquid bottle cap by threads, which can effectively prevent volatile substances from overflowing from the gap.

[0010] The liquid level indicator is composed of a hollow ball and an indicating sheet, both of which are made of polytetrafluoroethylene. The hollow ball is at the bottom of the waste liquid bottle body, and the indicating sheet enters the transparent outer screw cap from the liquid level indicator opening of the bottle cap.

[0011] The diameter of the hollow ball made of polytetrafluoroethylene is 2 cm. The material of the indicator sheet is polytetrafluoroethylene, with a length of 32 cm and a width of 0.5 cm.

[0012] The indicator sheet is composed of five colors from bottom to top, namely white, red, yellow, blue and green. Green indicates that the remaining volume capacity in the waste liquid bottle is greater than 3 liters, blue indicates that the remaining volume capacity in the waste liquid bottle is greater than 2 liters, yellow indicates that the remaining volume capacity in the waste liquid bottle is greater than 1 liter, and red indicates that the remaining volume capacity in the waste liquid bottle is less than 1 liter and needs to be replaced in time.

[0013] The utility model has the following advantages:

[0014] (1) This waste liquid bottle is made of brown borosilicate glass and should be protected from light;

[0015] (2) The top of the bottle cap is provided with a waste liquid outlet, an opening for placing an indicator sheet, and a corresponding outward-screw transparent cover to ensure sealing;

[0016] (3) The hollow ball made of polytetrafluoroethylene is connected to the indicator sheet. As the volume of the liquid in the waste liquid bottle increases, the hollow ball drives the indicator sheet to float up, and the color of the indicator sheet can be seen from the externally rotating transparent cover;

[0017] (4) The indicator sheet has four colors, representing different residual volumes, which can help remind the experimenter to dump the liquid in the waste bottle in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a waste liquid bottle (capacity: 4.5L) for a liquid chromatograph of the utility model;

[0019] Figure 2 This is a schematic diagram of a bottle cap of a waste liquid bottle for a liquid chromatograph according to the utility model;

[0020] Figure 3 This is a schematic diagram of the top view of the structure of a bottle cap of a waste liquid bottle for a liquid chromatograph according to the utility model;

[0021] Figure 4 This is a structural schematic diagram of a liquid level indicator for a waste liquid bottle for a liquid chromatograph according to the utility model;

[0022] Figure 5 The utility model is a schematic diagram of the use status of a waste liquid bottle (capacity: 4.5L) for liquid chromatography.

[0023] Description of main reference numerals:

[0024] 1- waste liquid bottle body, 2- bottle cap, 3- liquid level indicator, 4- handle, 5- waste liquid tube opening, 6- liquid level indicator opening, 7- external screw cap, 8- hollow ball, 9- indicator sheet. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] like Figure 1-4 As shown, a waste liquid bottle for liquid chromatography comprises a waste liquid bottle body 1, a bottle cap 2 and a liquid level indicator 3. The waste liquid bottle body 1 has a capacity of 4.5L and is made of brown glass. The bottle body has a handle 4. The bottle cap 2 is provided with a waste liquid pipe opening 5, a liquid level indicator opening 6 and a transparent cylindrical outer screw cap 7. The lower end of the waste liquid pipe is inserted into the bottle mouth of the waste liquid bottle body 1. The liquid level indicator 3 consists of a hollow ball 8 made of polytetrafluoroethylene and an indicator sheet 9. The ball body is at the bottom of the waste liquid bottle body 1, and the indicator sheet 9 enters the transparent outer screw cap 7 from the liquid level indicator opening 6 of the bottle cap 2.

[0027] like Figure 1 As shown, the shape of the waste liquid bottle body 1 is composed of a cylinder and a trapezoidal cylinder, and the handle 4 is installed on the outside of the trapezoidal cylinder, which is convenient for lifting and pouring, and is easy to use. The whole bottle is made of brown high borosilicate glass, with a specification of 4.5L, a bottle mouth diameter of 3.5cm, a bottle body diameter of 16.04cm, and a total height of 34cm. It has good corrosion resistance and acid and alkali resistance. The cylindrical body of the waste liquid bottle is marked with a liquid level scale.

[0028] like Figure 2-3 As shown, the bottle cap 2 is made of polytetrafluoroethylene and can be sealed on the bottle mouth of the waste liquid bottle body 1. The top of the bottle cap 2 has two openings, namely a circular opening for placing the waste liquid pipe - the waste liquid pipe opening 5 (diameter 0.8 cm) and a circular opening for placing the indicator sheet 9 - the liquid level indicator opening 6 (diameter 0.9 cm). The circular opening for placing the indicator sheet 9 is provided with a transparent outer screw cover 7 on the outside, the top of the transparent outer screw cover 7 is closed, and the bottom of the transparent outer screw cover 7 is fixed to the waste liquid bottle cap 2 by threads, which can effectively prevent volatile substances from overflowing from the gap. The length of the transparent cylindrical outer screw cover 7 for observing the indicator sheet 9 is 32 cm and the diameter is 0.7 cm.

[0029] like Figure 4 As shown, the liquid level indicator 3 is composed of a hollow ball 8 made of polytetrafluoroethylene and an indicating sheet 9. The hollow ball 8 is fixedly connected to the lower end of the indicating sheet 9. The body of the hollow ball 8 is at the bottom of the waste liquid bottle body 1. The indicating sheet 9 can enter the transparent outer screw cover 7 from the circular opening of the bottle cap 2.

[0030] The diameter of the hollow ball 8 made of polytetrafluoroethylene is 2 cm. The material of the indicator sheet 9 is polytetrafluoroethylene, with a length of 32 cm and a width of 0.5 cm.

[0031] The indicator sheet 9 uses different colors to indicate the volume capacity, and is divided into five sections A, B, C, D, and E from top to bottom, and the corresponding colors are green, blue, yellow, red, and white, respectively, and the length of the A, B, C, and D sections is 5 cm. Green indicates that the remaining volume capacity in the waste liquid bottle is greater than 3 liters, blue indicates that the remaining volume capacity in the waste liquid bottle is greater than 2 liters, yellow indicates that the remaining volume capacity in the waste liquid bottle is greater than 1 liter, and red indicates that the remaining volume capacity in the waste liquid bottle is less than 1 liter and needs to be replaced in time.

[0032] like Figure 5 As shown, when the volume of the waste liquid reaches 4L, the small ball (hollow ball 8) drives the indicator sheet 9 to float up, and segment D (red) can be seen in the transparent cylindrical outer screw cap 7, indicating that the remaining capacity in the waste liquid bottle is small and the waste liquid bottle should be replaced as soon as possible.

[0033] The utility model discloses a waste liquid bottle for a liquid chromatograph that can indicate the liquid level, and the device includes a waste liquid bottle, a customized bottle cap, and a liquid level indicator. The total capacity of the waste liquid bottle is 4.5L, and it is made of brown glass. The bottle body has a handle for easy replacement. The customized bottle cap is made of polytetrafluoroethylene, and there are two circular holes on the top of the bottle cap, which are used to place the waste liquid pipeline of the liquid chromatograph and the liquid level indicator, respectively. The liquid level indicator is composed of a hollow ball made of polytetrafluoroethylene and a rectangular thin sheet. The device can prompt the experimenter of the remaining volume in the waste liquid bottle, which is convenient for timely replacement and avoids waste liquid overflow; the waste liquid pipe enters the waste liquid bottle through the circular hole to form a closed environment and reduce the volatilization of organic reagents.

Claims

1. A waste liquid bottle for liquid chromatograph, characterized in that: The utility model is composed of a waste liquid bottle body, a bottle cap and a liquid level indicator. The bottle cap is provided with a waste liquid pipe opening and a liquid level indicator opening. An outer screw cap is provided outside the opening of the liquid level indicator. The lower end of the waste liquid pipe is inserted into the bottle mouth of the waste liquid bottle through the waste liquid pipe opening. The liquid level indicator is composed of a hollow ball and an indicator sheet. The hollow ball is fixedly connected to the lower end of the indicator sheet. The body of the hollow ball is arranged at the bottom of the waste liquid bottle body. The indicator sheet enters the outer screw cap through the liquid level indicator opening on the bottle cap.

2. The waste liquid bottle for liquid chromatograph according to claim 1, characterized in that: The waste liquid bottle body is also provided with liquid level scale lines and a handle.

3. The waste liquid bottle for liquid chromatograph according to claim 2, characterized in that: The waste liquid bottle body is composed of a cylindrical bottle body and a trapezoidal cylindrical bottleneck. The liquid level scale is arranged on the cylindrical bottle body, and the handle is arranged on the outer side of the trapezoidal cylindrical bottleneck.

4. The waste liquid bottle for liquid chromatograph according to claim 1, characterized in that: The waste liquid bottle body is made of brown high borosilicate glass, and the bottle cap is made of polytetrafluoroethylene.

5. The waste liquid bottle for liquid chromatograph according to claim 4, characterized in that: The capacity of the waste liquid bottle body is 4.5L-10.5, the diameter of the bottle mouth is 3.5cm, the diameter of the bottle body is 16.04cm-25.6cm, and the total height is 34cm.

6. The waste liquid bottle for liquid chromatograph according to claim 1, characterized in that: The opening of the liquid level indicator is provided with a transparent outer screw cover in a cylindrical shape. The top of the transparent outer screw cover is closed, and the bottom is fixed on the waste liquid bottle cap through threads.

7. The waste liquid bottle for liquid chromatograph according to claim 6, characterized in that: The length of the outer screw cap is 32 cm and the diameter is 0.7 cm; the waste liquid pipe opening and the liquid level indicator opening are both circular, the diameter of the waste liquid pipe opening is 0.8 cm, and the diameter of the liquid level indicator opening is 0.9 cm.

8. The waste liquid bottle for liquid chromatograph according to claim 1, characterized in that: The liquid level indicator is composed of a hollow ball and an indicating sheet, which is made of polytetrafluoroethylene. The hollow ball is at the bottom of the waste liquid bottle body, and the indicating sheet enters the transparent outer screw cap from the liquid level indicator opening of the bottle cap.

9. The waste liquid bottle for liquid chromatograph according to claim 8, characterized in that: The diameter of the hollow ball is 2 cm; the length of the indicating sheet is 32 cm and the width is 0.5 cm.

10. The waste liquid bottle for liquid chromatograph according to claim 9, characterized in that: The indicator sheet is composed of five colors from bottom to top, namely white, red, yellow, blue and green. Green indicates that the remaining volume capacity in the waste liquid bottle is greater than 3 liters, blue indicates that the remaining volume capacity in the waste liquid bottle is greater than 2 liters, yellow indicates that the remaining volume capacity in the waste liquid bottle is greater than 1 liter, and red indicates that the remaining volume capacity in the waste liquid bottle is less than 1 liter and needs to be replaced in time.

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