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Detection method of contents of monophosphate, biphosphonate and fatty alcohol-polyoxyethylene ether in phosphate

A technology of fatty alcohol polyoxyethylene ether and mono-bisphosphate, which can be used in measuring devices, instruments, scientific instruments, etc., and can solve the problems of long analysis time, expensive resin fillers, and non-reusable resins.

Active Publication Date: 2016-05-11
QUAKER CHEM CHINA
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Problems solved by technology

Usually, in order to obtain sufficient component information, the use of these methods has disadvantages such as long analysis time, large solvent consumption, expensive resin fillers, and resins that cannot be reused.

Method used

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  • Detection method of contents of monophosphate, biphosphonate and fatty alcohol-polyoxyethylene ether in phosphate
  • Detection method of contents of monophosphate, biphosphonate and fatty alcohol-polyoxyethylene ether in phosphate
  • Detection method of contents of monophosphate, biphosphonate and fatty alcohol-polyoxyethylene ether in phosphate

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Embodiment Construction

[0023] see figure 1 In order to better understand the technical solution of the present invention, the inventors of the present invention will describe in detail below through specific embodiments in conjunction with the accompanying drawings:

[0024] The content detection method of single and double phosphoric acid esters and fatty alcohol polyoxyethylene ethers in phosphoric acid ester of the present invention is based on fatty alcohol polyoxyethylene ethers, monophosphoric acid esters and bisphosphonic acid esters have different polarities, by selecting suitable chromatographic conditions, The monophosphate ester, fatty alcohol polyoxyethylene ether and bisphosphate ester are separated in chronological order on the chromatographic column of reversed-phase high performance liquid chromatography, and then detected by an evaporative light scattering detector, including the following steps:

[0025] Mobile phase preparation steps: The mobile phase is prepared from ammonium ace...

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Abstract

The invention discloses a detection method of contents of monophosphate, biphosphonate and fatty alcohol-polyoxyethylene ether in phosphate. The method is as below: preparing a mobile phase by using an aqueous solution of ammonium acetate and methanol; preparing a sample solvent by using 50 mMol / L aqueous solution of ammonium acetate and methanol; then dissolving a phosphate sample by the sample solvent to prepare a phosphate sample solution; then taking an appropriate amount of the phosphate sample solution, injecting the phosphate sample solution into a column of reversed-phase high-performance liquid chromatography, eluting with a mobile phase, sending an eluent into an evaporative light scattering detector, and detecting the eluent by using the evaporative light scattering detector; and according to the areas of the characteristic response peaks of monophosphate, fatty alcohol-polyoxyethylene ether and biphosphonate in the spectrum of the evaporative light scattering detector, using an area normalization method for quantitative calculation of the contents of monophosphate, fatty alcohol-polyoxyethylene ether and biphosphate.

Description

technical field [0001] The invention relates to a method for detecting the content of monophosphate and diphosphate and fatty alcohol polyoxyethylene ether in phosphoric acid ester. Background technique [0002] Fatty alcohol polyoxyethylene ether phosphate is usually referred to as phosphoric acid ester for short. Its production process is to synthesize monophosphate and diphosphoric acid in a system of fatty alcohol polyoxyethylene ether and phosphorus pentoxide in different molar ratios according to different needs. Esters, so in addition to phosphate esters, the product also has unreacted fatty alcohol polyoxyethylene ethers, as well as monophosphate esters and free diphosphate esters generated by the reaction. The structures of monophosphate and diphosphate are as follows: wherein R is an alkyl or aralkyl group, and n is 0-12. [0003] [0004] The monophosphate component in the product can enhance its water solubility, while the bisphosphate generally has better em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/89
CPCG01N30/89
Inventor 张艳
Owner QUAKER CHEM CHINA
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