Method for determining taurine content in solution and method for purifying taurine

A technology of taurine and solution, applied in the field of purifying taurine, can solve problems such as weak anti-interference ability, unsuitable for industrial production and the like

Active Publication Date: 2021-06-29
HUBEI GRAND LIFE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And the conventional differential detector, the incident light source is white light, the optical prism is mad

Method used

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  • Method for determining taurine content in solution and method for purifying taurine
  • Method for determining taurine content in solution and method for purifying taurine
  • Method for determining taurine content in solution and method for purifying taurine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Embodiment 1 utilizes taurine to prepare a preliminary standard curve, comprising the following steps:

[0066] Take the balance to accurately weigh 40g taurine, 60g ultrapure water, put the weighed sodium taurine and ultrapure water into a 250ml beaker and stir evenly, and configure a pure taurine solution with a mass concentration of 40w%. , divided into 20 parts on average, each with a mass of 5g, and marked as 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 , 18, 19, 20, and pure cows with numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 47.5g, 45g, 42.5g, 40g, 37.5g, 35g, 32.5g, 30g, 27.5g, 25g, 22.5g, 20g, 17.5g, 15g, 12.5g, 10g, 7.5g of deionized water in the sulfonic acid solution , 5g, 2.5g Dilute the taurine solution 10.5 times, 10 times, 9.5 times, 9 times, 8.5 times, 8 times, 7.5 times, 7 times, 6.5 times, 6 times, 5.5 times, 5 times, 4.5 times, 4 times, 3.5 times, 3 times, 2.5 times, 2 times, 1.5 times, the contents of t...

Embodiment 2

[0068] In embodiment 2, the preliminary standard curve obtained in embodiment 1 was corrected in combination with the solution components of the evaporation unit, including:

[0069] According to the impurity content composition of the evaporation post to simulate the site solution component content, accurately weigh 24g ethylene glycol, 30 ethanolamine, 60g isethionic acid, 10g sodium sulfate, 105g taurine, 71g ultrapure water with a balance, and weigh the Sodium taurine and ultrapure water are made in a 500ml beaker and stirred evenly, and the configuration percentage is 8% ethylene glycol, 10% ethanolamine, 20% sodium isethionate, 10% sodium sulfate, 35% aqueous solution of taurine, the solution is divided into 15 parts on average, each part has a mass of 20g, marked as 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 . Add 155g, 96.7g, 67.5g, 50.0g, 38.3g, 30g, 23.8g, 18.9g, 15g, 11.8g, 9.2g, 6.9g, 5.4g, 3.4g, 1.9g of ultrapure water, so that the bovine Sulfonic acid content wa...

Embodiment 3

[0071] Embodiment 3 provides a kind of on-the-spot taurine content online detection simulation experiment, comprises the steps:

[0072] As shown in Table 1 below, use a balance to weigh and measure taurine, ethylene glycol, sodium isethionate, sodium sulfate, and ethanolamine, add them to deionized water and dissolve them, stir evenly, and prepare taurine with a known mass concentration The solution was measured by two different methods of titration and refractometer detection, an online simulation experiment was established, the accuracy of the instrument measurement was checked, and the concentration curve was simulated. The results are shown in Table 1 and Figure 5 Shown:

[0073] Table 1 Online taurine content simulation experiment record table and measurement results

[0074]

[0075] From Table 1 and Figure 5 It is not difficult to see that accurate results can be obtained by using the refraction method to detect the taurine solution containing impurities. Moreo...

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Abstract

The invention provides a method for determining a content of taurine in a solution and a method for purifying the taurine. The method comprises the steps of determining the refractive index of a to-be-detected solution, wherein the to-be-detected solution contains taurine or salt thereof and impurities, and the impurities comprise at least one of ethylene glycol, sodium isethionate, sodium sulfate and polyethylene glycol; establishing a standard curve of the taurine concentration in the taurine solution based on the refractive index; and performing optical detection on the to-be-detected solution, and determining the content of the taurine or the salt thereof in the to-be-detected solution according to the position of the obtained optical detection value in the standard curve. Through the method, the content of taurine in various taurine solutions with complex components can be effectively detected.

Description

technical field [0001] The invention relates to the field of biological products, in particular to a method for determining the content of taurine in a solution and a method for purifying taurine. Background technique [0002] The synthetic methods of taurine that have practical application value are concentrated in the ethanolamine method and the ethylene oxide method. The reaction period of the ethanolamine method is very long, and the sulfonation reaction takes more than 30 hours, and the cost is high, so it will gradually be eliminated in the face of fierce market competition. The raw material cost of the ethylene oxide method is lower than that of the ethanolamine method. At present, the domestic industrialization has reached a certain scale, and more than 60% of the taurine raw materials in the world are prepared from the ethylene oxide method in China. The preparation of taurine by the ethylene oxide method usually comprises the following steps: taking ethylene oxide...

Claims

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Application Information

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IPC IPC(8): G01N21/43G01N1/28
CPCG01N21/43G01N21/274G01N1/28G01N2201/12769G01N2201/12784G01N2001/2893
Inventor 孙华君江汝泳谈敏郭晨何本斌钱志强熊先胜
Owner HUBEI GRAND LIFE SCI & TECH CO LTD
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