Method for detecting tributyltin in marine fishes and shellfishes

A tributyltin and detection method technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of long time consumption, high threshold value, unsuitable determination of trace organotin, etc.

Inactive Publication Date: 2016-05-04
ZHEJIANG WANLI UNIV
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods are either time-consuming, or have low sensitivity ...

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
  • Method for detecting tributyltin in marine fishes and shellfishes
  • Method for detecting tributyltin in marine fishes and shellfishes
  • Method for detecting tributyltin in marine fishes and shellfishes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Below in conjunction with embodiment the present invention is further described in detail. It should be pointed out that the following specific descriptions are all exemplary, and are intended to provide further description of the present invention. Unless otherwise specified, all scientific and technical terms used in this invention have the same meaning as commonly understood by those skilled in the art to which this invention belongs.

[0027] 1. Preparation of Magnetic Molecularly Imprinted Polymers

[0028] Preparation of molecularly imprinted polymers: To prepare molecularly imprinted polymers (MIPs), 1 mmol of TBT and 4 mmol of methacrylic acid (MAA) were mixed in a 50 mL flask, and the mixture was pre-polymerized at room temperature for 5 min. Then 20 mmol of ethylene glycol dimethacrylate (EGDMA), 15 mg of azobisethylbutyronitrile (AIBN) and 5 mL of acetonitrile were added respectively. Polymerize in a water bath at 65°C for 20h. After the polymer was ground...

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 provides a method for detecting tributyltin in marine fishes and shellfishes. The method comprises the following steps: taking a to-be-detected sample, adding a standard TBT solution into the to-be-detected sample, and performing ultrasonic extraction with an acetic-acid-methanol solution to obtain a to-be-adsorbed solution; preparing Fe3O4 nanoparticles, modifying the Fe3O4 nanoparticles with APTS, modifying the obtained Fe3O4@APTS particles with MAA, and coating the obtained Fe3O4@MAA particles with an MIP layer to obtain a magnetic molecularly imprinted polymer Fe3O4@MIPs; and adding the to-be-adsorbed solution into Fe3O4@MIPs for adsorption while performing magnetic stirring, performing elution with a formic-acid-methanol solution, and detecting the obtained eluate with HPLC-ICP-MS. The method has characteristics of good interference resistance and high sensitivity and speed. At the same time, according to the method, gathering of tributyltin is improved during a detection process and provides necessary requirements for detection, and adoption of the imprinted polymer is beneficial for specificity detection.

Description

technical field [0001] The invention relates to the technical field of safety detection of marine aquatic products, in particular to a method for detecting tributyltin in marine fish and shellfish based on magnetic molecular imprinting technology HPLC-ICP-MS detection. Background technique [0002] Organotin compounds have good reactivity and biological activity, so they are widely used in various fields of industry and agriculture. (1) As antifouling additives for ships: tributyltin and triphenyltin have special toxic effects on fungi and algae, so they are mainly used in antifouling coatings for ships to prevent organisms such as mussels from adhering to the ship. Reduce fuel waste, reduce ship speed, etc. (2) As an insecticide and fungicide: triphenyltin acetate is mainly used for the control of sugar beet brown spot and rice blast; triphenyltin chloride can be used to synthesize bactericidal pesticide poisonous tin and bactericidal pesticide potato blast Tin can also b...

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
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/027G01N2030/062
Inventor 杨华潘道东朱晓艳
Owner ZHEJIANG WANLI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap