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Method for analyzing polyethenoxy ether, and compound in polyethenoxy ether class, as well as for giving their chemical constitution

A technology of polyoxyethylene ethers and polyoxypropylene ethers, which is applied in the field of analytical chemistry and can solve problems such as the inability to give chemical structures

Inactive Publication Date: 2007-02-21
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used elemental analysis and functional group chemical analysis methods cannot give its accurate chemical structure, so spectroscopic methods must be used, that is, ultraviolet, infrared, nuclear magnetic and mass spectrometry, etc.

Method used

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  • Method for analyzing polyethenoxy ether, and compound in polyethenoxy ether class, as well as for giving their chemical constitution
  • Method for analyzing polyethenoxy ether, and compound in polyethenoxy ether class, as well as for giving their chemical constitution
  • Method for analyzing polyethenoxy ether, and compound in polyethenoxy ether class, as well as for giving their chemical constitution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 The alkylphenol polyoxyethylene ether is analyzed and the chemical structural formula is given.

[0032] figure 1 is alkylphenol polyoxyethylene ether Electrospray positive mode mass spectrum.

[0033] Such as figure 1 As shown, in the data marked in the figure, there are three different intervals, and the data of each interval is about a constant Q, and Q is 44.02621499.

[0034] The three sets of data are as follows:

[0035] The first group 435.2563, 479.2783, 523.3075, 567.3289, 611.3577, 655.3828, 699.4056, 743.4328, 787.4584, 831.4833, 875.5057, 919.5415, 963.5653, 1007.598, etc.;

[0036] The second group 463.3010, 507.3288, 551.3552, 595.3818, 639.4047, 683.4303, 727.4594, 771.4811, 815.5124, 859.5351, etc.;

[0037] The third group 573.4003, 617.04276, 661.4558, etc.

[0038] Randomly select an m / z from the above three sets of data, that is, the ratio of the mass m of the ion to the number of charges z, that is, the mass-to-charge ratio.

[00...

Embodiment 2

[0048] Example 2 The fatty amine polyoxyethylene ether is analyzed and the chemical structural formula is given.

[0049] figure 2 It is fatty amine polyoxyethylene ether (C x h 2x+1 NH(CH 2 CH 2 O) n H or ) Electrospray positive mode mass spectrum.

[0050] Such as figure 2 As shown, in the data marked in the figure, there are three different intervals, and the data of each interval is about a constant Q, and Q is 44.02621499.

[0051] The three sets of data are as follows:

[0052] Group 1 406.3513, 450.3786, 494.4022, 538.4299, 582.4573, 626.4825, 670.5095, 714.5342, 758.5643, 802.5872, 846.6136;

[0053] The second group 472.3601, 516.3837, 560.4125, 604.4420, 648.4624, 692.4913, 736.5178, 780.5424, 824.5730, 868.5935;

[0054] The third group 488.3346, 532.3608, 576.3816, 620.4825, 664.4388, 708.4609, 752.4914, 796.5148, 840.5418, 884.5701.

[0055] Randomly select an m / z from the above three sets of data, that is, the ratio of the mass m of the ion to the n...

Embodiment 3

[0066] Example 3 Alkylphenol polyoxyethylene ether phosphate was analyzed and its chemical structural formula was given.

[0067] image 3 Alkylphenol polyoxyethylene ether phosphate electrospray negative mode mass spectrum.

[0068] Such as image 3 As shown, in the data marked in the figure, there are three different intervals, and the data of each interval is about a constant Q, and Q is 44.02621499.

[0069] The three sets of data are as follows:

[0070] The first group 517.2981, 561.3236, 605.3509, 649.3787, 693.4075, 737.4295, 781.4591, 825.4794, 869.5084, 913.5357, 957.5639, 1001.5895, 1045.6143, 10761.

[0071] The second group 621.3496, 665.3733, 709.4018, 753.4261, 797.4479, 841.4776, 885.5066, 929.5291, 973.5577;

[0072] Group 3 681.3691, 725.3935, 769.4211, 813.4478, 857.4762, 901.4995.

[0073] Randomly select an m / z from the above three sets of data, that is, the ratio of the mass m of the ion to the number of charges z, that is, the mass-to-charge ratio...

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Abstract

A method for analyzing polyoxyethylene ether compound and polyoxypropylene ether compound includes applying polymerization degree to calculate out mass number and listing said mass number, utilizing high resolution of soft ionization mass spectrum to obtain mass data and making difference between two adjacent mass data be a constant Q; selecting data A, B, C and D from mass data and operating them to obtain polymerization degree.

Description

technical field [0001] The invention belongs to the technical field of analytical chemistry, and relates to a method for analyzing polyoxyethylene ether and polyoxypropylene ether compounds by using high-resolution soft ionization mass spectrometry, calculating the degree of polymerization and the carbon number of R group, and providing the corresponding chemical structure. Background technique [0002] Polyoxyethylene ether and polyoxypropylene ether compounds are a large class of surfactants, which include most nonionic surfactants and some anionic surfactants, and are widely used in various fields of industrial and agricultural production. [0003] At present, the analysis of surfactants is a big problem, and it is urgent to find a fast, simple and accurate method to analyze their chemical structures. Commonly used elemental analysis and functional group chemical analysis methods cannot give its accurate chemical structure, so spectroscopic methods must be used, namely ul...

Claims

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Application Information

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IPC IPC(8): G01N33/44H01J49/26C08G65/00
Inventor 贾益群秦创业张杰王玲贺尊诗
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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