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

A kind of assay method of sodium dodecylbenzene sulfonate in water-based glue

A technology of sodium dodecylbenzenesulfonate and a determination method, which is applied in the field of analysis, can solve problems such as false positives and interference measurement results, and achieve the effects of reducing interference, high sensitivity, and small volume

Active Publication Date: 2021-09-07
CHINA TOBACCO GUANGXI IND
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The assay method of anionic synthetic detergent in "Drinking Water Hygienic Standard" (2006 edition), sample is through 50% ethanol immersion ultrasonic extraction, uses the content of methylene blue ultraviolet spectrophotometry to measure ABS, but if there is sodium saccharin, sodium saccharin, Vanillin will interfere with the determination results and produce false positives, so this method is also difficult to directly learn from

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
  • A kind of assay method of sodium dodecylbenzene sulfonate in water-based glue
  • A kind of assay method of sodium dodecylbenzene sulfonate in water-based glue
  • A kind of assay method of sodium dodecylbenzene sulfonate in water-based glue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1. Instruments and reagents:

[0042] Sodium dodecylbenzenesulfonate (purity greater than 98%, Bailingwei Technology Co., Ltd.), chromatographic grade methanol, ethanol and acetonitrile.

[0043] waters ACQUITY UPLC I-Class ultra-high performance liquid chromatography, PDA detector (waters company), Empower 3 chromatographic workstation (waters company); BP221S electronic balance (sensitivity 0.0001g, German Sartorius company); VX-2500 vortex Oscillator (HENRY TROEMNER LLC, USA); Milli-Q ultrapure water machine (Millipore, USA); microporous organic filter membrane (0.22 μm, Shanghai Anpu Scientific Instrument Co., Ltd.).

[0044] 2. Sample processing:

[0045] Weigh 0.1g of water-based glue sample and place it in a conical flask, add 10mL of 50% ethanol aqueous solution, and then add 150mg of C 18 Disperse the solid-phase extractant, vortex for 5 minutes, take a small amount of extract, centrifuge, and filter with a 0.22 μm organic filter membrane to obtain the sample...

Embodiment 2

[0066] The specific detection steps are as described in Example 1, another water-based glue sample B is selected, and the results are shown in Table 3

[0067] Table 3 The detection results of the target in sample B

[0068]

Embodiment 3

[0070] The specific detection steps are as described in Example 1, another water-based glue sample B was selected, and the results are shown in Table 4.

[0071] The detection result of target object in the table 4 sample C

[0072]

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

No PUM Login to View More

Abstract

The invention discloses a method for determining sodium dodecylbenzenesulfonate in water-based glue. Step 1: take a sample of water-based glue and extract sodium dodecylbenzenesulfonate in an extractant, and separate the solid phase to obtain water-based glue. Glue sample solution; Step 2: prepare sodium dodecylbenzenesulfonate standard curve solution for subsequent use; Step 3: the water-based glue sample solution and standard curve solution in the step 1 and step 2 are passed through ultra-high performance liquid chromatography respectively Instrument elution analysis, quantitative detection of sodium dodecylbenzene sulfonate by external standard method, and calculate the content of sodium dodecylbenzene sulfonate in water-based glue according to the test results. In view of the characteristics of small dead volume and high sensitivity of the ultra-high performance liquid chromatography, the target compound sodium dodecylbenzenesulfonate in the water-based rubber sample was first extracted with an extractant, and then analyzed by ultra-high performance liquid chromatography. The content of the target compound was quantitatively calculated by the external standard method, and a new rapid analysis method was established, and the determination time was less than 20 minutes.

Description

technical field [0001] The invention relates to the technical field of analysis, in particular to a method for determining sodium dodecylbenzenesulfonate in water-based glue. Background technique [0002] An emulsifier is a substance that improves the surface tension between the various constituent phases in the emulsion to form a uniform and stable dispersion system or emulsion. Emulsifier is a surface-active substance with both hydrophilic and lipophilic groups in its molecule. It gathers on the oil / water interface, which can reduce the interfacial tension and reduce the energy required to form an emulsion, thereby increasing the energy of the emulsion. As an anionic surfactant, sodium dodecylbenzenesulfonate has good surface activity and strong hydrophilicity, which can effectively reduce the tension of the oil-water interface and achieve emulsification. Therefore, dodecylbenzenesulfonate Sodium is widely used in the preparation of emulsions such as cosmetics, food, prin...

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 Patents(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/062
Inventor 周晓朱静陈志燕周芸吴晶晶徐石磊梁海玲黄世杰
Owner CHINA TOBACCO GUANGXI IND
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