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Application of nanoparticle tracking analyzer in surfactant aggregate characterization

A surfactant and nanoparticle technology, used in particle and sedimentation analysis, particle size analysis, analysis of materials, etc., can solve problems such as cumbersome and scattered operations, and achieve the effect of simplifying the analysis process, improving reliability, and improving analysis efficiency.

Pending Publication Date: 2022-03-15
CHINA RES INST OF DAILY CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The current characterization method for surfactant aggregates has many limitations, and the operation is scattered and cumbersome; provide a characterization method for surfactant aggregates that is simple to operate, can observe surfactant aggregates in real time, and integrates various analytical methods , which is of great significance for the characterization of surfactant aggregates

Method used

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  • Application of nanoparticle tracking analyzer in surfactant aggregate characterization
  • Application of nanoparticle tracking analyzer in surfactant aggregate characterization
  • Application of nanoparticle tracking analyzer in surfactant aggregate characterization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The steps to characterize surfactant aggregates using the Nanoparticle Tracking Analyzer are as follows:

[0037] (1) Turn on the power and start the program, inject distilled water into the sample pool through the syringe for rinsing, inject the particle size standard solution into the sample pool successively for rinsing and calibration of the laser light source and microscope, rinse the sample pool with water, and rinse until the particle counting reading When it is less than 10 and the Cell Quality Result of the sample cell shows Good Good or Very Good; inject the particle size standard solution into the sample cell through a syringe, and calibrate the laser light source and microscope;

[0038] (2) Fatty alcohol polyoxyethylene ether sodium sulfate (AES) aqueous solution of preparation 15mmol / L;

[0039] (3) After setting the temperature parameter of the temperature control unit to 25° C., inject the AES aqueous solution in step (2) into the sample cell through a s...

Embodiment 2

[0043] The steps to characterize surfactant aggregates using the Nanoparticle Tracking Analyzer are as follows:

[0044] (1) Turn on the power and start the program, inject distilled water into the sample pool through the syringe for rinsing, inject the particle size standard solution into the sample pool successively for rinsing and calibration of the laser light source and microscope, rinse the sample pool with water, and rinse until the particle counting reading When it is less than 10 and the Cell Quality Result of the sample cell shows Good Good or Very Good; inject the particle size standard solution into the sample cell through a syringe, and calibrate the laser light source and microscope;

[0045] (2) prepare the linear alkylbenzene sulfonate sodium (LAS) aqueous solution of 6mmol / L;

[0046] (3) After setting the temperature parameter of the temperature control unit to 25°C, inject the LAS aqueous solution in step (2) into the sample cell through a syringe for measur...

Embodiment 3

[0050] The steps to characterize surfactant aggregates using the Nanoparticle Tracking Analyzer are as follows:

[0051] (1) Turn on the power and start the program, inject distilled water into the sample pool through the syringe for rinsing, inject the particle size standard solution into the sample pool successively for rinsing and calibration of the laser light source and microscope, rinse the sample pool with water, and rinse until the particle counting reading When it is less than 10 and the Cell Quality Result of the sample pool is displayed as Good Good or Very Good (Very Good); inject the particle size standard solution into the sample pool through a syringe, and calibrate the laser light source and microscope;

[0052] (2) prepare the linear alkylbenzene sulfonate sodium (LAS) aqueous solution of 6mmol / L;

[0053] (3) After setting the temperature parameter of the temperature control unit to 25°C, inject the LAS aqueous solution in step (2) into the sample cell throug...

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Abstract

The invention discloses an application of a nano-particle tracking analyzer in characterization of a surfactant aggregate. The method comprises the following steps: calibrating an instrument; the temperature parameter of the temperature control unit is set to be 25 + / -1 DEG C; filling a sample; setting camera parameters and laser light source parameters, and checking a concentration range; if the concentration of the surfactant is too high, the sample needs to be diluted, the dilution degree of the sample is adjusted to be the corresponding dilution multiple, and it is confirmed that the drift value is within the green range; running video acquisition, setting a file name, and setting a measurement position number, a cycle index, a video length and a resolution ratio; and after acquisition and analysis are completed, the data are accepted and rejected according to parameters shown in the report. According to the present invention, the form, the size and the movement condition of the surfactant aggregate can be represented without damaging the structure only by using the nanoparticle tracking analyzer, and the particle size distribution determination, the volume distribution determination and the Zeta potential analysis can be performed on the surfactant aggregate.

Description

technical field [0001] The invention relates to the technical field of characterization of surfactant aggregates, in particular to the application of a nanoparticle tracking analyzer in the characterization of surfactant aggregates. Background technique [0002] At present, the instruments that can be used to characterize surfactant aggregates mainly include transmission electron microscope, freeze-etching transmission electron microscope, dynamic light scattering instrument and Zeta potential instrument. However, in the characterization of surfactant aggregates, these instruments have problems such as complex sample preparation process, high cost, characterization results heavily dependent on sample preparation, and difficulty in integrated characterization. [0003] Transmission electron microscopy and cryo-etching transmission electron microscopy were used to directly observe the morphology and size of surfactant aggregates. Among them, the use of transmission electron m...

Claims

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Application Information

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IPC IPC(8): G01N15/02
CPCG01N15/0211G01N15/0227
Inventor 台秀梅李春晖王天壮郭凌霄白艳云马艳君
Owner CHINA RES INST OF DAILY CHEM IND
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