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Method for rapidly screening perfluorinated compounds and precusor substances thereof in fish meat

A technology of perfluorinated compounds and precursor substances, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as difficult to realize simultaneous extraction of perfluorinated compounds, simultaneous detection of difficult target compounds, complex processing process, etc., to improve quantitative ability , Simplify the sample pretreatment procedure and enhance the effect of qualitative ability

Active Publication Date: 2016-11-16
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Abstract
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Problems solved by technology

thus, now Some methods still have the disadvantages of complex pretreatment process and high detection limit. On the one hand, it is difficult to realize the simple and convenient simultaneous extraction of various perfluorinated compounds and their precursors; Simultaneous detection of dozens of target compounds

Method used

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  • Method for rapidly screening perfluorinated compounds and precusor substances thereof in fish meat
  • Method for rapidly screening perfluorinated compounds and precusor substances thereof in fish meat
  • Method for rapidly screening perfluorinated compounds and precusor substances thereof in fish meat

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Embodiment

[0030] 1. Instruments and test materials used in this embodiment

[0031](1) Q-Exactive quadrupole-electrostatic field orbitrap high-resolution mass spectrometry system and Dionex UltiMate3000 ultra-high performance liquid chromatography system (Thermo-Fisher Company); T18 basic homogenizer (IKA Company); XW-80A vortex mixer ( Shanghai Medical University Instrument Factory); Himac CR 22GⅡ high-speed centrifuge (Hitachi Company); N-EVAP112 nitrogen blowing instrument (Organomation Company); Milli-Q ultrapure water instrument (Millipore Company); solid-phase extraction device (Supelco Company).

[0032] (2) Standard substances: (1) 18 kinds of PFCs: perfluorobutyric acid, perfluorovaleric acid, perfluorocaproic acid, perfluoroheptanoic acid, perfluorooctanoic acid, perfluorononanoic acid, perfluorodecanoic acid, perfluoroundecane acid, perfluorododecanoic acid, perfluorotridecanoic acid, perfluorotetradecanoic acid, perfluorohexadecanoic acid, perfluorooctadecanoic acid, perfluo...

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Abstract

The invention discloses a method for rapidly screening perfluorinated compounds and precusor substances thereof in fish meat, and belongs to the technical field of aquatic product detection. According to the method, a pass-type Oasis PRiME HLB solid-phase extraction and purification strategy is adopted, a sample pretreatment process is simplified, impurity interference components such as fat and phospholipids in a sample matrix are removed, and simultaneous extraction of multiple perfluorinated compounds and precusor substances thereof is achieved; meanwhile, the advantages of a liquid chromatography-quadrupole rod / electrostatic field orbitrap high resolution mass spectrum are utilized, the qualitative capacity for a complex matrix is enhanced by obtaining the accurate mass number and rich fragment ion information, the quantifying effect of the high resolution mass spectrum is improved, high-throughput qualitative screening for simultaneously determining 18 PFCs and 21 precusor substances through single injected sampling is achieved, and a high-sensitive quantitative result is obtained.

Description

technical field [0001] The invention belongs to the technical field of aquatic product detection, and in particular relates to a rapid screening method for perfluorinated compounds and their precursors in fish meat. Background technique [0002] Perfluorinated compounds (Perfluorinated Compounds, PFCs) are a new type of persistent organic pollutants, with multi-organ toxicity and suspected carcinogenicity. Among them, perfluorooctane sulfonic acid (salt) and perfluorooctane sulfonyl fluoride have been included in the priority control list of the Stockholm Convention, and their use is restricted worldwide. In addition to PFCs themselves, PFCs precursors have been confirmed to be the main source of PFCs contamination in organisms. More importantly, PFCs precursors not only have a huge yield, but also have a wide range of applications and distributions. Under natural conditions, they can be enriched in organisms in different ways and transformed into perfluorocarboxylic acids ...

Claims

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Application Information

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IPC IPC(8): G01N30/88
CPCG01N30/88G01N2030/8813
Inventor 郭萌萌谭志军翟毓秀吴海燕赵春霞李兆新彭吉星
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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