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Method for testing content of glycol phenylate

A technology of ethylene glycol phenyl ether and a determination method, which is applied in the field of physical and chemical testing, can solve problems such as strict requirements, cumbersome operation, and high cost, and achieve the effects of accurate and effective results, easy implementation, and low cost

Inactive Publication Date: 2014-09-17
SUZHOU COMING CHENGYE MEDICAL TECH
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  • Abstract
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Problems solved by technology

For such small molecular compounds, laboratories mostly use high-performance liquid chromatography (HPLC) and mass spectrometry (MS) for qualitative and quantitative analysis, but these methods are cumbersome to operate and require strict conditions, and the cost of equipment investment and daily analysis is relatively high , it is difficult to popularize in small and medium-sized laboratories

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  • Method for testing content of glycol phenylate
  • Method for testing content of glycol phenylate
  • Method for testing content of glycol phenylate

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] 1. Preparation of standard curve:

[0019] 1) Preparation of ethylene glycol phenyl ether standard solution: Weigh 0.02g of ethylene glycol phenyl ether, dissolve it in an appropriate amount of deionized water, and dilute to 1L to prepare a 0.02g / L standard solution. Prepare standard solutions with concentrations of 0.04g / L, 0.06g / L, 0.08g / L, and 0.10g / L in turn according to the above preparation method.

[0020] 2) Characteristic peak selection: Scan the standard solutions with different concentration gradie...

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Abstract

The invention discloses a method for testing the content of glycol phenylate. The method comprises the following steps: preparing glycol phenylate standard solutions of different concentrations, with water as blank control, testing the absorbance values of the standard solutions at the wavelength of 270nm, establishing a coordinate system with the absorbance values and standard concentration as coordinates, drawing a standard curve, testing the absorbance values of the glycol phenylate standard solutions at the wavelength of 270nm, and performing linear regression on the absorbance values by virtue of the standard curve so as to obtain the concentration of the solution to be tested. In such a mode, the method for testing the content of glycol phenylate is to rapidly test the content of glycol phenylate in a solution by an ultraviolet spectrophotometry method. The method is short in testing time, accurate and effective in result, easy to perform, free of expensive experiment instruments or reagents, relatively low in cost and easy to popularize and used in middle and small laboratories.

Description

technical field [0001] The invention relates to the field of physical and chemical testing, in particular to a method for determining the content of ethylene glycol phenyl ether. Background technique [0002] Ethylene glycol phenyl ether, also known as 2-phenoxyethanol, is a colorless or light yellow transparent liquid with a slight aroma and is a low-toxicity substance. Ethylene glycol phenyl ether has both hydroxyl and ether groups, and can be used as an excellent solvent for various organic substances, commonly known as "universal solvent". Ethylene glycol phenyl ether is often used as a solvent for paints and inks, as a penetrant and bactericide in detergents, as a film-forming aid for water-based paints, as a protective agent and thinner for fragrances in cosmetics, as a component of hair dyes and nail polishes. Good solvent and penetration aid, used as extractant in petroleum industry, ethylene glycol phenyl ether is an ideal preservative in medicine, and can also be ...

Claims

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Application Information

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IPC IPC(8): G01N21/31G01N21/33
Inventor 杨灵勇周丽霞
Owner SUZHOU COMING CHENGYE MEDICAL TECH
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