Rotary evaporator

Abstract

The utility model discloses a rotary evaporator. The rotary evaporator comprises a rotary evaporator main body, a feeding pipe is arranged at one end of the rotary evaporator main body; a dehydration layer and a purification layer are arranged in the chromatographic column, and the chromatographic column is used for purifying the extract liquor; the guide pipe is used for connecting a feeding pipe with the chromatographic column. According to the utility model, the transfer steps of extract liquor can be reduced, the problems of sample loss and sample pollution caused in the transfer process are reduced, meanwhile, the contact between experimenters and samples can be reduced, and the working efficiency and the safety are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental apparatus technical field, concretely relates to a rotary evaporator. BACKGROUND

[0002] In the environmental analysis process, the detection of trace organic sample usually needs to go through the extraction step, and then the extraction liquid is dehydrated, purified and concentrated for quantitative analysis. The above three steps are independent of each other, resulting in a relatively complex operation process. At the same time in the processing process, the extraction liquid needs to be transferred for many times, and sample loss and pollution problems may occur in the transfer process, resulting in low work efficiency. In addition, the experimental personnel need to directly contact many organic reagents in the operation process, which endangers the health of the experimental personnel. UTILITY MODEL CONTENT

[0003] The utility model discloses a rotary evaporator.

[0004] The utility model discloses a rotary evaporator.

[0005] A rotary evaporator comprises a rotary evaporator main body;

[0006] One end of the rotary evaporator main body is provided with a feeding pipe;

[0007] A chromatographic column is internally provided with a dehydration layer and a purification layer, and is used for purifying the extraction liquid;

[0008] A conduit is used for connecting the feeding pipe and the chromatographic column.

[0009] As a further description of the above technical scheme, the chromatographic column comprises a tubular main body, the upper end of the tubular main body is open, and the lower end of the tubular main body is a tapered outlet.

[0010] As a further description of the above technical scheme, the dehydration layer is any one of anhydrous sodium sulfate or anhydrous magnesium sulfate.

[0011] As a further description of the above technical scheme, the purification layer is any one of silica gel, activated carbon or florence silica.

[0012] As a further description of the above technical scheme, the dehydration layer is arranged above the purification layer.

[0013] As a further description of the above technical scheme, the rotary evaporator main body further comprises a condenser pipe, the outer portion of the condenser pipe is fixedly provided with a support, and the support is connected with the chromatographic column.

[0014] As a further description of the above technical scheme, the upper end of the tubular main body is connected with a pressurizing device.

[0015] As a further description of the above technical solution, the pressurizing device is a needle tube or an electric air pump.

[0016] As a further description of the above technical solution, the catheter is made of polytetrafluoroethylene material.

[0017] As a further description of the above technical solution, the chromatographic column is made of transparent glass material.

[0018] The beneficial effects of the present application are as follows:

[0019] In the present application, the extraction liquid is poured into the chromatographic column from the top of the chromatographic column, and the extraction liquid is purified by the dehydration layer and the purification layer, and the bottom of the chromatographic column is connected with a catheter, the catheter is connected with the inlet of the feeding pipe, the purified extraction liquid can be directly added to the feeding pipe, the transfer steps of the extraction liquid can be reduced, the sample loss and sample pollution caused by the transfer process can be reduced, the contact between the experimental personnel and the sample can be reduced, and the working efficiency and safety can be effectively improved.

[0020] To make the structure features and effects of the present application clearer, the present application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic view of the rotary evaporator provided by the present application.

[0022] Reference signs: 100, rotary evaporator main body; 110, feeding pipe; 120, condenser pipe; 130, chromatographic column; 131, tubular main body; 132, dehydration layer; 133, purification layer; 140, catheter; 150, bracket. DETAILED DESCRIPTION

[0023] To make the structure features and effects of the present application clearer, the present application will be described in detail below in combination with the drawings and specific embodiments.

[0024] As shown in Figure 1 In one embodiment, a rotary evaporator includes a rotary evaporator main body 100, wherein a feeding pipe 110 is arranged at one end of the rotary evaporator main body 100, and the feeding pipe 110 is arranged at the higher end of the rotary evaporator main body 100, so that the added material can flow into the rotary bottle at the lower end.

[0025] In the chromatographic column 130, a dehydration layer 132 and a purification layer 133 are arranged, the extraction liquid is poured into the chromatographic column 130 from the top of the chromatographic column 130, and the extraction liquid is purified by the dehydration layer 132 and the purification layer 133. A conduit 140 is connected to the bottom of the chromatographic column 130, the conduit 140 is connected to the inlet of the feeding pipe 110, and the purified extraction liquid can be directly added to the feeding pipe 110. The transfer steps of the extraction liquid can be reduced, the sample loss and sample pollution caused by the transfer process can be reduced, the contact between the experimental personnel and the sample can be reduced, and the work efficiency and safety can be effectively improved.

[0026] Optionally, in order to enable the extraction liquid to flow smoothly into the feeding pipe 110, in some embodiments, the outlet height of the chromatographic column 130 is greater than the height of the feeding pipe 110, and the extraction liquid is caused to enter the feeding pipe 110 by gravity. In other embodiments, a pressurizing device can be installed at the upper opening of the chromatographic column 130. After the extraction liquid is poured into the chromatographic column 130, the pressurizing device is installed to apply pressure to the chromatographic column 130. The extraction liquid can enter the feeding pipe 110, and the extraction liquid can also be stably passed through the dehydration layer 132 and the purification layer 133.

[0027] Optionally, the chromatographic column 130 includes a tubular body 131, the upper end of the tubular body 131 is open, and the lower end of the tubular body 131 is a tapered outlet. The extraction liquid is poured from the opening and flows out from the tapered outlet. In some embodiments, the tubular body 131 is made of transparent glass, which is inexpensive and can see the inside.

[0028] Optionally, the dehydration layer 132 is any one of anhydrous sodium sulfate or anhydrous magnesium sulfate. When the extraction liquid passes through the dehydration layer 132 containing anhydrous sodium sulfate, the anhydrous sodium sulfate absorbs the water in the extraction liquid to form a crystalline hydrate of sodium sulfate. The anhydrous magnesium sulfate becomes magnesium sulfate containing crystalline water after absorbing water. The water absorption speed is relatively fast.

[0029] Optionally, the purification layer 133 is any one of silica gel, activated carbon or Florisil. When purifying some organic extraction liquid containing a small amount of pigment, the silica gel can adsorb the pigment molecules in the extraction liquid, so that the extraction liquid becomes clear and transparent. The activated carbon can adsorb the pigment, odor substances and some small molecular organic impurities in the extraction liquid. Florisil is a magnesium silica gel, and the main component is magnesium silicate. When removing polar impurities (such as organic acids, sugars, etc.) from the extraction liquid, Florisil can be used as the purification layer 133 to purify the extraction liquid by adsorbing these polar impurities.

[0030] Optionally, the dehydration layer 132 is arranged above the purification layer 133, and dehydration is performed first, and then purification is performed.

[0031] Optionally, the pressurizing device mentioned above can be a needle tube or an electric air pump, and the needle tube can apply pressure to the chromatographic column 130 by being manually pushed.

[0032] Optionally, the catheter 140 is made of polytetrafluoroethylene material, which is chemically stable and has good biocompatibility.

[0033] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein, and the contents not described in detail in the description belong to the prior art known by the person skilled in the art.

[0034] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary evaporator characterized by, The rotary evaporator body comprises a rotary evaporator body; One end of the rotary evaporator body is provided with a feeding pipe; The chromatographic column is internally provided with a dehydration layer and a purification layer for purifying the extraction liquid. The conduit is used to connect the feeding pipe and the chromatographic column.

2. The rotary evaporator of claim 1, wherein, The chromatographic column comprises a tubular body, the upper end of the tubular body is open, and the lower end of the tubular body is a tapered outlet.

3. The rotary evaporator of claim 1, wherein, The dehydration layer is any one of anhydrous sodium sulfate or anhydrous magnesium sulfate.

4. The rotary evaporator of claim 1, wherein, The purification layer is any one of silica gel, activated carbon or florence silica.

5. The rotary evaporator of claim 1, wherein, The dehydration layer is arranged above the purification layer.

6. The rotary evaporator of claim 1, wherein, The rotary evaporator body further comprises a condenser tube, the outer part of the condenser tube is fixed with a support, and the support is connected with the chromatographic column.

7. The rotary evaporator of claim 2, wherein, The upper end of the tubular body is connected with a pressurizing device.

8. The rotary evaporator of claim 7, wherein, The pressurizing device is a needle tube or an electric air pump.

9. The rotary evaporator of claim 1, wherein, The conduit is made of polytetrafluoroethylene material.

10. The rotary evaporator of claim 1, wherein, The chromatographic column is made of transparent glass material.

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