Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Quantitative detection method for hexadecyl trimethyl ammonium bromide

A technology of cetyltrimethylammonium bromide and quantitative detection method, which is applied in Raman scattering, material excitation analysis, etc., can solve the problems of cumbersome operation and high detection limit, and achieve high selectivity and good reproducibility Effect

Inactive Publication Date: 2015-12-02
QIQIHAR UNIVERSITY
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the technical problems of high detection limit and cumbersome operation of the existing cetyltrimethylammonium bromide (CTAB) detection method, and provides a quantitative detection of cetyltrimethylammonium bromide method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Quantitative detection method for hexadecyl trimethyl ammonium bromide
  • Quantitative detection method for hexadecyl trimethyl ammonium bromide
  • Quantitative detection method for hexadecyl trimethyl ammonium bromide

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Specific embodiment one: the quantitative detection method of the cetyltrimethylammonium bromide of the present embodiment, carry out according to the following steps:

[0014] 1. Weigh 18.0mg~72.0mg of silver nitrate and dissolve it in 150mL of water. After heating to boiling under stirring conditions, add 2.0mL~8.0mL of sodium citrate solution with a concentration of 1%~3% by mass, and continue Keep the solution boiling and stirring for 30-60 minutes, then cool naturally to room temperature to obtain the silver sol, and store the silver sol at 0-4°C in the dark for later use;

[0015] 2. Take 4 to 10 parts of silver sol of equal volume prepared in step 1, add different volumes of cetyltrimethylammonium bromide solution to it, and prepare a series of CTAB-AgNPs mixed solutions with different CTAB concentrations, and let stand After 3 to 5 minutes, carry out the Raman spectrum test, the 759cm in the Raman spectrum -1 、1230cm -1 or 1442cm -1 The characteristic peak in...

specific Embodiment approach 2

[0017] Embodiment 2: This embodiment differs from Embodiment 1 in that the rotational speed of stirring in Step 1 is 100-500 rpm. Others are the same as the first embodiment.

specific Embodiment approach 3

[0018] Specific embodiment three: the difference between this embodiment and specific embodiment one is that in step one, 30.0 mg of silver nitrate is weighed and dissolved in 150 mL of water, and after being heated to boiling under stirring conditions, 3.0 mL of silver nitrate is added with a mass percent concentration of 2 % sodium citrate solution, continue to keep the solution boiling and stir for 40min, and naturally cool to room temperature to obtain silver sol. Others are the same as the first embodiment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a quantitative detection method for hexadecyl trimethyl ammonium bromide, and relates to a method for detecting hexadecyl trimethyl ammonium bromide. The detection method solves the technical problems that the detection limit is high and operation is tedious in present hexadecyl trimethyl ammonium bromide detection methods. The method comprises steps: silver nitrate is dissolved in water, a sodium citrate solution is added in a heating condition for reduction, and silver sol is obtained; a hexadecyl trimethyl ammonium bromide solution is added into the silver soil, the mixture is mixed uniformly, and a series of CTAB-AgNPs mixed liquids with different concentrations are obtained, Raman spectrum test is carried out, a picture of intensities of characteristic peaks in the Raman spectra to CTAB concentrations is drawn, a standard curve is obtained, then a liquid to be detected is mixed with the silver sol, Raman spectrum test is carried out, the concentration of hexadecyl trimethyl ammonium bromide in the substance to be detected is obtained from the standard curve. The detection limit can reach a minimum of 7.4*10<-7>M. The detection method can be used for detection of CTAB in surface water, lake water and sewage.

Description

technical field [0001] The invention relates to a method for detecting cetyltrimethylammonium bromide (CTAB). Background technique [0002] With the continuous development of modern industry, the consumption of surfactants has increased sharply, which has brought more and more serious pollution and harm to the ecological environment. Among them, cationic surfactants, as a class of highly toxic organic pollutants, have a strong inhibitory effect on microorganisms, are not easy to biodegrade in the environment, and also inhibit the degradation of other pollutants, which will lead to serious water pollution. Cetyltrimethylammonium bromide (CTAB) is an important cationic surfactant with excellent penetration, softening, emulsifying, antistatic and bactericidal properties, and is widely used in industrial production and daily products. Eventually it will be released into the environment, causing environmental problems. Therefore, the establishment of CTAB detection and quantita...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65
Inventor 贾丽华郭祥峰段海龙
Owner QIQIHAR UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com