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Method for treating sample by adopting rotary evaporator and rotary evaporation system

A rotary evaporator, a technology for processing samples, applied in chemical instruments and methods, distillation in rotary containers, separation methods, etc. time, increasing the surface area of ​​the liquid, and improving the efficiency of rotary evaporation

Inactive Publication Date: 2021-03-12
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in general, the rotary evaporation of the solution takes a long time, which often restricts the rapid progress of scientific research and production, so how to improve the efficiency of rotary evaporation easily and efficiently, and achieve the purpose of easy promotion is very important
On the other hand, during the rotary evaporation process, due to the difference in the thermal stability of the sample, it will be more or less consumed, and some substances are easy to degrade during the rotary evaporation. How to ensure the stability of the sample during the rotary evaporation process is also an important aspect of the rotary evaporation technology. An important issue to raise
[0003] Therefore, the use of rotary evaporators for rotary evaporation treatment remains to be studied

Method used

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  • Method for treating sample by adopting rotary evaporator and rotary evaporation system
  • Method for treating sample by adopting rotary evaporator and rotary evaporation system
  • Method for treating sample by adopting rotary evaporator and rotary evaporation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In this embodiment, the chlorophyll extract is treated in accordance with the following method.

[0042] Ethanol-aqueous solvent is a common solvent that acquires natural plant components, and chlorophyll in spinach can be extracted by ethanol-water. Due to experimental desirable, the extracted chlorophyll samples need to be dissolved in other solvents such as pure n-butanol.

[0043] Step: Place the chlorophyll extract into the rotating bottle, then add 20 hollow stainless steel balls (a diameter of 2.5 cm, mass is 6.7g), down 40 ° C, 138 rpm, -0.1MPa, 6 hours, chlorophyll retention The rate is 98 ~ 99%.

[0044] At the same time, the inventors are used as a control as a control without adding hollow stainless steel balls, and the time required for the same time is nearly 8 hours, and the retention ratio of chlorophyll is 95 to 97%.

[0045] As a result, the presence of stainless steel balls significantly increases the steam efficiency, and helps maintain the stability of ...

Embodiment 2

[0047] In this example, water is used as a sample liquid, and 20 table tennis (cellululine) is placed in a spiral bottle (4 cm, mass is 2.7g) at 40 ° C, 138 rpm, -0.1MPa. The time required for complete evaporation is 20 minutes, and the time required for the heart is 90 minutes. Thus, the steam efficiency after adding the ball is an original 450%.

Embodiment 3

[0049] The relevant mathematical calculation analysis of the addition of light hollow floats to a rotary bottle is added as follows:

[0050] The volume of the rotary bottle is V, the radius is R,:

[0051]

[0052]

[0053] In general, the volume solution in the rotating flask does not exceed 1 / 3 of the bottle volume, here in the maximum sample amount V S As the sample volume, the highest steam efficiency is achieved, then:

[0054]

[0055] The shape solution is actually a ball in the shape of the rotating bottle, and it is preferable that the ball is h, then:

[0056]

[0057] and so:

[0058] V = 3πrh 2 -πh 3

[0059]

[0060] The rotating bottle of the present invention is 10 L, then:

[0061] V = 10L = 10000cm 3

[0062] then:

[0063]

[0064] Bring the specific value of V, R into the above-mentioned three times equation, solve:

[0065] H ≈10.3436cm

[0066] The sphere of the ball is the surface of the sample solution, and the cross section radius r S Satisfy...

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Abstract

The invention provides a method for treating a sample by adopting a rotary evaporator and a rotary evaporation system. The method comprises the following steps: placing a sample solution and at leastone sphere in a rotary bottle of the rotary evaporator, wherein the sphere floats on the surface of the sample solution; and starting the rotary evaporator to perform rotary evaporation treatment. Byutilizing the method for treating the sample by adopting the rotary evaporator, the rotary evaporation efficiency can be effectively improved, the rotary evaporation time is shortened, a relatively stable reaction system is provided for the sample solution, substances in the sample solution are prevented from being degraded, the retention rate is increased, and the method is suitable for wide application.

Description

Technical field [0001] The present invention relates to the field of instruments. Specifically, the present invention employs a method of treating a sample and a rotary evaporation system of a sample of a spin evaporator. Background technique [0002] The rotary evaporator has been widely used in the fields of research, industrial, etc., which combines the solution surface area formed by vacuuming, and the heat provided by the flask rotation, and the heat provided by the water bath heating is combined to evaporate. This principle mainly involves four aspects related to liquid evaporation rate: temperature, air flow rate, surface area, humidity. Based on the original, one item or a few items of the above four indicators will help evaporative efficiency. However, in general, the steam of the solution takes longer, which often restricts scientific research, the rapid production of production, so how easy and efficiently enhances the vapor efficiency, and achieves the purpose of easy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/08
CPCB01D3/085
Inventor 张燕李方巍李彦霏胡小松廖小军
Owner CHINA AGRI UNIV