Method for rapid analysis of trace polybrominated diphenyl ethers in water sample

A technology for rapid analysis of polybrominated diphenyl ethers, which is applied to the analysis of materials, measuring devices, and separation of materials. It can solve the problems of PBDEs detection without a guiding standard method, and achieve the effects of shortening the detection cycle, simple processing, and increased detection speed.

Inactive Publication Date: 2015-11-18
SHANDONG ANALYSIS & TEST CENT
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country only has a national standard detection method for PBDEs in electrical and electronic products (GB / Z21276-2007), and its pretreatment methods are traditional Soxhlet extraction and ultrasonic extraction, but there is no guidance for the detection of PBDEs in environmental water samples. sexual standard 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
  • Method for rapid analysis of trace polybrominated diphenyl ethers in water sample
  • Method for rapid analysis of trace polybrominated diphenyl ethers in water sample
  • Method for rapid analysis of trace polybrominated diphenyl ethers in water sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] 1.1 Instruments and reagents

[0030] 1.1.1 Experimental reagents

[0031] The n-hexane, methanol, dichloromethane, acetone and acetonitrile used in the experiment are all chromatographic pure reagents, and other reagents are analytical pure unless otherwise specified. Seven kinds of polybrominated diphenyl ether mixed standard solutions were supplied by Supelco Company (USA).

[0032] 1.1.2 Experimental equipment

[0033] The main instruments used in the experiment are: 7890AGC-7000BMS Gas Chromatography-Triple Quadrupole Mass Spectrometry (Agilent, USA).

[0034] 1.2 Synthesis of carbon-coated Fe3O4 nanomaterials

[0035] Weigh 0.4g Fe3O4 nanosphere material, add 0.1MHNO 3 Ultrasonic treatment for 10 minutes in medium, rinse with ultrapure water after taking out, and dry in the air. Add it into 80mL of 0.5M aqueous glucose solution, sonic...

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 rapid analysis of trace polybrominated diphenyl ethers (PBDEs) in a water sample. The method is characterized by comprising the following steps: (1) dispersing a magnetic nano-material in the water sample for extraction; (2) attracting the magnetic nano-material to the bottom of a container by using a magnet and discarding supernatant; (3) eluting the magnetic nano-material by using dichloromethane; and (4) subjecting eluate to nitrogen blowing at normal temperature until the eluate is dried, redissolving the dried eluate with dichloromethane, taking a sample and introducing the sample into a GC-MC system for analysis. According to the invention, the magnetic nano-material is used as an adsorbent for enrichment of BDEs in a water body for the first time; GC-MC analysis is carried out after elution; and the detection method for rapid analysis of seven PBDEs in water is established. The method has low detection limit and is completely adaptable to trace detection of PBDEs in aquatic products.

Description

technical field [0001] The invention relates to a method for rapidly analyzing trace polybrominated diphenyl ethers in water samples. Background technique [0002] Polybrominated diphenyl ethers (PBDEs) are a class of commonly used brominated flame retardants, which have been widely used as additive flame retardants since the 1970s and are mainly used in the field of consumer products. The main industrial commodities of PBDEs include pentabromodiphenyl ether, octabromodiphenyl ether and decabromodiphenyl ether. As a class of persistent organic pollutants, PBDEs are persistent, mobile, bioaccumulative and highly toxic. With the detection of PBDEs in various environmental media such as air, water, sediments and human body, the environmental problems caused by PBDEs have attracted widespread attention. In May 2009, commercial pentabromodiphenyl ether and octabromodiphenyl ether were included in the controlled list of the Stockholm Convention on Persistent Organic Pollutants. ...

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): G01N30/88
Inventor 赵汝松邢寒竹王霞王珊珊陈相峰苑金鹏王晓利陈跃
Owner SHANDONG ANALYSIS & TEST CENT
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