Direct detection of five chemical pollutants in propolis by electrospray extraction ionization mass spectrometry

An ionized mass and electrospray technology, which is applied in the field of detection of chemical pollutants in propolis, can solve the problems of long pretreatment time, inability to meet rapid high-throughput detection, etc., achieve fast analysis speed, improve sample pretreatment, and avoid false detection. positive effect

Active Publication Date: 2018-12-04
江西山蜂食品有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the detection of chemical pollutants in propolis mainly includes high performance liquid chromatography (HPLC), gas chromatography (GC), high performance liquid chromatography-mass spectrometry (LC-MS), gas chromatography-mass spectrometry (GC-MS), etc. , they have high sensitivity, but the complex sample pretreatment takes a long time and cannot meet the needs of rapid and high-throughput detection

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
  • Direct detection of five chemical pollutants in propolis by electrospray extraction ionization mass spectrometry
  • Direct detection of five chemical pollutants in propolis by electrospray extraction ionization mass spectrometry
  • Direct detection of five chemical pollutants in propolis by electrospray extraction ionization mass spectrometry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to better explain the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but they do not limit the present invention.

[0036] The mass spectrometer used in the present invention is the LTQ-XL linear ion trap mass spectrometer of the U.S. Finnigan company, and the data processing system is the Xcalibur data processing system of the U.S. Finnigan company.

[0037] The EESI ion source was developed by the Jiangxi Provincial Key Laboratory of Mass Spectrometry Science and Instruments; precision electronic balance (Mettler Toledo), pure water preparation instrument (Thermo Fisher Scientific); methanol (chromatographically pure, SK CHEMICALS), ethanol (chromatographic Pure, Xilong Chemical Co., Ltd.), formic acid (analytical grade, Tianjin Fuchen Chemical Reagents); standard products are dichlorvos, dimethoate, chlorpyrifos-methyl, chlorpyrifos, chlorpyrifos (purit...

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 belongs to the technical field of detection and discloses a method for directly detecting five kinds of chemical pollutants in propolis by electrospray extraction ionization mass spectrometry. The invention comprises the following steps: 1) preparation of standard solution; 2) preparation of propolis tincture; 3) preparation of standard propolis tincture; 4) electrospray extraction ionization mass spectrometry detection; 5) qualitative analysis; 6) quantitative analysis. The detection method of the invention has less sample consumption, fast analysis speed, and can realize high throughput and on-line detection. Direct analysis and detection of common propolis chemical pollutants without complicated sample pretreatment, and the detection time of a single sample is less than 1min. Non-toxic and non-polluting to products, operators and working environment; high sensitivity. The invention does not require complicated pretreatment of the sample to be tested, can withstand the influence of the complex matrix of propolis, realizes direct and rapid detection of chemical pollutants in propolis, and improves the defects of cumbersome sample pretreatment and long analysis time in the existing analysis technology.

Description

technical field [0001] The invention relates to a method for detecting chemical pollutants in propolis, in particular to a method for directly detecting five kinds of chemical pollutants in propolis by electrospray extraction ionization mass spectrometry. Background technique [0002] Propolis is a resin collected by bees from poplar, betula, willow, oak, horse chestnut and coniferous plants, and mixed with beeswax by bees to form a viscous substance through glandular secretions. Propolis is an effective substance used by bees to maintain the health of the whole group. A colony of 50,000 to 60,000 bees can only produce 70 to 100g of propolis a year, so it is called "purple gold". Due to its diverse biological and pharmacological activities, propolis has properties such as antibacterial, antiviral, antioxidative, anticancer, beautifying and promoting cell regeneration, and is widely used in medicine, cosmetics and food industries. [0003] The residue of chemical 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 Patents(China)
IPC IPC(8): G01N27/62
CPCG01N27/62
Inventor 罗丽萍陈焕文郭夏丽罗火林于腾辉刘星星方小伟
Owner 江西山蜂食品有限公司
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