Unlock instant, AI-driven research and patent intelligence for your innovation.

Online detection device capable of being used for morphological analysis of organic tin and analysis method

A morphological analysis and detection device technology, which is applied in the field of environmental sample pretreatment and chemical analysis and detection, and can solve the problems of limited extraction capacity and low extraction efficiency.

Active Publication Date: 2022-07-12
XIAMEN UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, IT-SPME has the problems of limited extraction capacity and low extraction efficiency in practical applications. Magnetic field-assisted technology can improve the extraction efficiency of IT-SPME and speed up the extraction process.

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
  • Online detection device capable of being used for morphological analysis of organic tin and analysis method
  • Online detection device capable of being used for morphological analysis of organic tin and analysis method
  • Online detection device capable of being used for morphological analysis of organic tin and analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The first step is to prepare MMEC:

[0031] The synthesis reaction equation of MMEC is as follows figure 1 As shown, using AMT and VA as functional monomers, DVB as cross-linking agent, AIBN as initiator, n-propanol and 1,4-butanediol as porogen, modified Fe 3 O 4 The nanoparticles are used as MNPs to form a prepolymerized solution; the composition of the monomer mixture (including functional monomers, cross-linking agents and initiators) is 20% of functional monomers, 0.5% of AIBN, and 79.5% of DVB by mass percentage; The composition of functional monomer is AMT 20%, VA 80% by mass percentage; the mass ratio of n-propanol and 1,4-butanediol in the porogen is 1:3; the composition of the prepolymerization solution is by mass The percentages are 20% for the monomer mixture, 80% for the porogen, and 0.5 mg / 100 mg of the prepolymerized solution for MNPs. After weighing and mixing the reactants according to the above proportions, ultrasonication was performed to form a ho...

Embodiment 2

[0042] The first step is to prepare MMEC:

[0043] Using AMT and VA as functional monomers, DVB as cross-linking agent, AIBN as initiator, n-propanol and 1,4-butanediol as porogen, modified Fe 3 O 4 The nanoparticles are MNPs, which form a prepolymerized solution; the composition of the monomer mixture (including functional monomers, cross-linking agents and initiators) is 30% of functional monomers, 1.0% of AIBN, and 69% of DVB by mass percentage; The composition of the functional monomer is AMT 30%, VA 70% by mass percentage; the mass ratio of n-propanol and 1,4-butanediol in the porogen is 3:1; the composition of the prepolymerization solution is by mass The percentages are 30% for the monomer mixture, 70% for the porogen, and 5.0 mg / 100 mg of the prepolymerized solution for MNPs. After weighing and mixing the reactants according to the above proportions, ultrasonication was performed to form a homogeneous solution, which was poured into a tubular container, sealed and th...

Embodiment 3

[0052] The first step is to prepare MMEC:

[0053] Using AMT and VA as functional monomers, DVB as cross-linking agent, AIBN as initiator, n-propanol and 1,4-butanediol as porogen, modified Fe 3 O 4 Nanoparticles are MNPs, which form a prepolymerized solution; the composition of the monomer mixture (including functional monomers, cross-linking agents and initiators) is 40% of functional monomers, 1.0% of azobisisobutyronitrile, 2 Vinylbenzene 59%; the composition of the functional monomer is AMT 67%, VA 33% by mass percentage; the mass ratio of n-propanol and 1,4-butanediol in the porogen is 1:1; The composition of the prepolymerized solution is 30% of the monomer mixture, 70% of the porogen, and 2.5 mg / 100 mg of the prepolymerized solution for MNPs by mass percentage. After weighing and mixing the reactants according to the above proportions, ultrasonication was performed to form a homogeneous solution, which was poured into a tubular container, sealed and then placed in a ...

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 an on-line detection device and an analysis method for morphological analysis of organic tin, and belongs to the field of environmental sample pretreatment and chemical analysis and detection. The method comprises the following steps: firstly, preparing an MNPs-doped integral solid-phase micro-extraction column, applying electric fields with different directions and intensities to the extraction column in adsorption and desorption processes, and inducing magnetic nanoparticles in an integral adsorbent to generate a magnetic field gradient; according to the magnetic microflow principle, the diamagnetic target object tends to gather in an area with the weakest magnetic field intensity, so that the extraction efficiency of the target object is improved, the enrichment of the target object is accelerated, and the analysis time is shortened. According to the method, an in-tube solid-phase microextraction-chromatography on-line coupling system based on magnetic field assistance is established by utilizing the diamagnetic characteristic and the magnetic microflow principle of an organic tin compound and combining an in-tube solid-phase microextraction technology and a high performance liquid chromatography separation means based on an integral material, so that on-line operation from extraction to detection analysis of OTCs in different forms is realized. The method is simple to operate, high in automation degree, good in accuracy and environment-friendly.

Description

technical field [0001] The invention belongs to the field of environmental sample pretreatment and chemical analysis and detection, in particular to an on-line detection device and analysis method that can be used for organic tin speciation analysis, which can be used for environmental water samples, seafood and other complex samples. Background technique [0002] Organotin compounds (OTCs) are metal-organic compounds formed by the direct combination of tin and carbon. Stabilizers (Wang Heng, Hu Hongmei, Guo Yuanming, et al. Research progress on detection methods of organotin compounds in aquatic products, Journal of Food Safety and Quality Inspection, 2019, 10:7245-7252). There are many types of OTCs. According to the number of organic substituent groups attached to tin, they can be divided into mono-substituted tin, di-substituted tin, tri-substituted tin and tetra-substituted tin. The toxicity of tri-substituted tin > di-substituted tin > mono-substituted tin > t...

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): G01N30/06G01N30/60G01N30/34
CPCG01N30/06G01N30/6052G01N30/34G01N2030/062
Inventor 黄晓佳宋逍冲
Owner XIAMEN UNIV