Isotope sample resin separation pretreatment device with gas guide column

Abstract

A pretreatment device for isotope sample resin separation with an air-conducting column comprises a separation column cap, a resin separation column, an air-conducting column, a sieve plate, and an ultrasonic cleaning instrument water tank. The resin separation column is installed above the ultrasonic cleaning instrument water tank via a resin separation column bracket; a separation column cap is provided at one end of the resin separation column, and an eluent outlet is provided at the other end; an air-conducting column and a sieve plate are provided in the resin separation column; one end of the air-conducting column is connected to the sieve plate, and the other end is connected to the separation column cap; the sieve plate is provided with fine holes, and the sieve plate can filter out the resin eluent, while the resin cannot filter through the sieve plate. The present invention inserts a thin air-conducting column into the center of the resin separation column, and under the action of ultrasonic waves, the bubbles are destabilized and float up along the air-conducting column and discharged. The present invention can effectively discharge bubbles in the resin separation column, saving experimental time, reducing the time the resin is exposed to the air, reducing the contamination of the resin separation column by air, and also reducing the experience requirements of the experimenter.

Description

Technical Field

[0001] The invention relates to the field of resin separation, in particular to an isotope sample resin separation pretreatment device with a gas guide column. Background Art

[0002] When performing resin separation pretreatment for isotope samples, it is necessary to fill the resin separation column. Different resins are used according to the differences in isotope ratios. Most resins have a small diameter, generally 50-500 mesh. The resin after soaking and activation is very light. After being transferred to the resin separation column, it carries a large number of bubbles. These bubbles bring great trouble to the subsequent isotope separation efficiency and seriously affect the quality of resin separation. Usually, filling the column requires very experienced experimenters to complete.

[0003] To successfully pack a resin column, the primary method is to carefully pour the treated resin along the inner wall of the column, minimizing the introduction of air bubbles. If air bubbles are introduced, the usual approach is to pour out the resin and repack the column. Alternatively, the column can be shaken up and down to remove the bubbles, or the outer wall can be repeatedly tapped to pop them out. These operations, whether repacking the column, shaking the column up and down to remove the bubbles, or repeatedly tapping the outer wall to pop the bubbles, are time-consuming and labor-intensive.

[0004] The main reason is that the resin is very fine and suspended in the resin separation liquid, while the bubbles are adsorbed on the resin and cannot be removed directly. Shaking or tapping the outer wall are difficult to directly act on the bubbles. Summary of the Invention

[0005] In summary, the purpose of the present invention is to provide an isotope sample resin separation pretreatment device with an air-conducting column, which releases bubbles in the resin separation column along the air-conducting column under the action of ultrasound, thereby eliminating the interference of bubbles on isotope separation.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A resin separation pretreatment device for isotope samples with a gas-conducting column comprises a separation column cap, a resin separation column, a gas-conducting column, a sieve plate, an eluent outlet, an eluent outlet cap, a resin separation column bracket, and an ultrasonic cleaning instrument water tank. The resin separation column is mounted above the ultrasonic cleaning instrument water tank via the resin separation column bracket. One end of the resin separation column is provided with a separation column cap, and the other end is provided with an eluent outlet; the eluent outlet end is provided with an eluent outlet cap; an gas-conducting column and a sieve plate are provided in the resin separation column; one end of the gas-conducting column is connected to the sieve plate, and the other end is connected to the separation column cap.

[0008] The sieve plate is provided with fine holes, which can filter out the resin eluent, but the resin cannot filter through the sieve plate.

[0009] The working principle of the present invention is:

[0010] The present invention inserts a thin air guide column into the center of the resin separation column to reduce the adsorption force of bubbles on the resin. Under the action of ultrasonic waves, the bubbles become unstable and float up along the air guide column to be discharged.

[0011] The advantages and beneficial effects of the present invention are:

[0012] 1. The present invention can effectively discharge bubbles in the resin separation column, reducing the experience requirements for the experimenter.

[0013] 2. The present invention can effectively discharge bubbles in the resin separation column, saving experimental time, reducing the time the resin is exposed to the air, and reducing air pollution to the resin separation column.

[0014] 3. The present invention adopts an air guide column, and the resin separation column can be installed in a few minutes. Without the use of the air guide column, the failure rate of filling the resin separation column is very high, it takes 6-10 hours, and the quality cannot be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] In the figure: 1-separation column cap; 2-resin separation column; 3-gas guide column; 4-resin eluent; 5-sieve plate; 6-eluent outlet; 7-eluent outlet cap; 8-resin separation column bracket; 9-ultrasonic cleaning instrument water tank. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] like Figure 1 As shown, a resin separation pretreatment device for isotope samples with a gas-conducting column includes a separation column cap 1, a resin separation column 2, a gas-conducting column 3, a sieve plate 5, an eluent outlet 6, an eluent outlet cap 7, a resin separation column bracket 8, and an ultrasonic cleaning instrument water tank 9. The resin separation column 2 is installed above the ultrasonic cleaning instrument water tank 9 through the resin separation column bracket 8; one end of the resin separation column 2 is provided with a separation column cap 1, and the other end is provided with an eluent outlet 6; the eluent outlet 6 end is provided with an eluent outlet cap 7; the resin separation column 2 is provided with a gas-conducting column 3 and a sieve plate 5; one end of the gas-conducting column 3 is connected to the sieve plate 5, and the other end is connected to the separation column cap 1.

[0019] An air guide column 3 is placed upright on the sieve plate 5 at the bottom of the resin separation column 2 . The length of the air guide column 3 is the same as that of the resin separation column 2 , or slightly longer than that of the resin separation column 2 .

[0020] The gas guide column 3 is made of glass or the same material as the resin separation column.

[0021] The upper end of the air guide column 3 is fixed on the resin separation column cap 1. Example

[0022] Pour the soaked resin into the resin separation column 2 from the upper part of the resin separation column 2. After the resin separation column 2 is filled, use the eluent outlet cap 7 to seal the eluent outlet 6 at the end of the resin separation column 2, and then fix the resin separation column 2 as a whole in the ultrasonic cleaning instrument water tank 9; then, insert the air guide column 3 rinsed with the resin separation liquid into the resin separation column 2 and fix it. Finally, turn on the ultrasonic instrument, and the ultrasonic wave is transmitted to the resin and bubbles in the resin separation column 2 through the water in the ultrasonic cleaning instrument water tank 9. The high-frequency vibration of the ultrasonic wave causes the bubbles to separate from the resin. The separated bubbles collide with other bubbles and grow rapidly. They initially adhere to the air guide column 3, and then float up until the eluent is discharged.

[0023] Using a gas guide column, the resin separation column can be installed in a few minutes. Without a gas guide column, the failure rate of filling the resin separation column is very high, it takes 6-10 hours, and the quality cannot be guaranteed.

Claims

1. An isotope sample resin separation pretreatment device with an air-conducting column, comprising a separation column cap (1), a resin separation column (2), an air-conducting column (3), a sieve plate (5), an eluent outlet (6), an eluent outlet cap (7), a resin separation column bracket (8), and an ultrasonic cleaning instrument water tank (9), characterized in that: The resin separation column (2) is installed above the ultrasonic cleaning instrument water tank (9) through the resin separation column bracket (8); one end of the resin separation column (2) is provided with a separation column cap (1), and the other end is provided with an eluent outlet (6); the eluent outlet (6) end is provided with an eluent outlet cap (7); the resin separation column (2) is provided with an air guide column (3) and a sieve plate (5); one end of the air guide column (3) is connected to the sieve plate (5), and the other end is connected to the separation column cap (1), and the air guide column (3) is glass or the same material as the resin separation column; The sieve plate (5) is provided with fine holes, and the sieve plate (5) can filter out the resin eluent (4) without allowing the resin to filter through the sieve plate (5); Pour the soaked resin from the upper part of the resin separation column (2) into the resin separation column (2). After the resin separation column (2) is filled, use the eluent outlet cap (7) to seal the eluent outlet (6) at the end of the resin separation column (2), and then fix the resin separation column (2) as a whole in the ultrasonic cleaning instrument water tank (9); then, insert the air guide column (3) rinsed with the resin separation liquid into the resin separation column (2) and fix it. Finally, turn on the ultrasonic instrument, and the ultrasonic wave is transmitted to the resin and bubbles in the resin separation column (2) through the water in the ultrasonic cleaning instrument water tank (9). The high-frequency vibration of the ultrasonic wave causes the bubbles to separate from the resin. The separated bubbles collide with other bubbles and quickly grow. They initially adhere to the air guide column (3) and then float up until the eluent is discharged.

Images