SN/T 5365-2022 in English

VALID

Determination of flucarbazone-sodium and flucetosulfuron residues in foodstuffs of plant origin for export - LC-MS/MS method

Issued on:2022-03-14
Implemented on:2022-10-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $390.00
$379.00

Standard No:	SN/T 5365-2022
Document status:	VALID
Title in English:	Determination of flucarbazone-sodium and flucetosulfuron residues in foodstuffs of plant origin for export - LC-MS/MS method
Title in Chinese:	出口植物源性食品中氟唑磺隆和氟吡磺隆残留量的测定液相色谱-质谱/质谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2022-03-14
Implemented on:	2022-10-01
Professional Classification:	SN-Import&Export Inspection
Related Keywords:	lc-ms/ms method introduction analysis method principle traditional gc method flucetosulfuron residues plant origin
Related Topics:	liquid chromatography mass spectrometry Liquid Chromatography-Mass Spectrometry/Mass Spectrometry No peak in liquid chromatography Liquid chromatography does not show liquid chromatography mass spectrometry Liquid Chromatography Fluoride Liquid Chromatography-Mass Spectrometry No peak in mass spectrum Mass Spectrometry Conditions liquid chromatography mass spectrometry Liquid Chromatography + Mass Spectrometry Chromatographic peak retention Mass Spectrometry Conditions Spectro-Mass Spectrometry No peak in mass spectrum Liquid Chromatography-Mass Spectrometry/Mass Spectrometry Quantification by liquid chromatography mass spectrometry Quantification by mass spectrometry ethersulfuron liquid chromatography Liquid Chromatography Mass Spectrometry/Mass Spectrometry Quantitative mass spectrometry Liquid Chromatography Mass Spectrometry/Mass Spectrometry mass spectrometry external standard method Liquid Chromatography Mass Spectrometry/Mass Spectrometry Octafluoronaphthalene Gas Chromatography Mass Spectrometry Flusulfuron-methyl Pyrazole Mass Spectrometry Sulfa gas chromatography mass spectrometry Mass Spectrometry Determination of pymetrozine residues in food for export by liquid chromatography-mass spectrometry/mass spectrometry mass spectrum liquid mass spectrometry Chromatography Quantitative mass spectrometry liquid mass spectrometry Quantitative transition neutral mass spectrum MS mass 18 Fluorine in mass spectrometry liquid chromatography mass spectrometry mass spectrometry Liquid Chromatography-Mass Spectrometry Mass Spectrometry Liquid Chromatography/Mass Spectrometry Liquid Chromatography - Mass Spectrometry mass spectrometry Liquid Chromatography + Mass Spectrometry + sn/t2022 Chromatography MS co-elution LC-MS co-elution Liquid chromatography peaks within a few minutes at the earliest Long mass spectrometry mass spectrum peak Sulfururon Sulfur Sulfur on Mass spectrometry+conditions+ MS effluent Quantification by mass spectrometry mass spectrometry How to qualitative mass spectrometry MS co-elution mass spectrometry flora and fauna Absolute Qualitative Mass Spectrometry Mass Spectrometry Quantification by liquid chromatography mass spectrometry liquid phase Quantification by liquid chromatography mass spectrometry Sulfur+ mass spectrometry external standard method Absolute quantitation by mass spectrometry mass spectrometry LC outlet ring for mass spectrometryfor plants Five kinds of sulfur in food of animal origin mass spectrum 5 Mass spectrum +5 liquid-mass spectrometry Liquid chromatography + chromatography + mass spectrometry liquid chromatography mass spectrometry mass spectrometry Liquid Chromatography + Mass Spectrometry + Mass Spectrometry MS/MS Liquid chromatography mass spectrometry+ Mass spectrometry+quantitative+ Liquid Chromatography + Mass Spectrometry Liquid chromatography + mass spectrometry + quantification Qualifier transition flusasulfuron Fluoride in liquid phase Mass Spectrum 41 Peak Sulfur food Chromatographic retention time Fluorine Mass Spectrometry External Standard Mass Spectrometry Characteristics of Mass Spectrometry Edible sulfur Fluorine Mass Spectrometry Liquid Chromatography - Mass Spectrometry Mass Spectrometric Detection of Octafluoronaphthalene food of plant origin Octafluoronaphthalene mass spectrometric detection method Liquid chromatography-mass spectrometry quantification Quantification by liquid chromatography mass spectrometry food of plant origin Liquid chromatography mass spectrometry APCI source Mass Spectrometry Method EI Source Plant gene cloning methods Acidic substances produce double peaks in liquid phase method Fluorine spectrum standards sn/t 5380-2022

Introduction

Analysis of the core content of the standard

Technical parameters	Flucetosulfuron-methyl	Flucetosulfuron-methyl
Limit of quantification	5.0 μg/kg	5.0 μg/kg
Retention time (min)	4.69	5.69
Quantitative ion pairs (m/z)	397.1/130.0	488.5/156.0

Method Principle and Technology Evolution

This standard uses liquid chromatography-mass spectrometry/mass spectrometer for detection. Compared with the traditional GC method:

Sensitivity is improved by 10 times (quantification limit 5μg/kg)
Introduction of dispersed solid phase extraction purification technology, the recovery rate is increased to 80-115%
Matrix matching calibration is used to eliminate matrix effects

Key Operation Points

Sample Pretreatment Differences

Graphitized carbon black (GCB) needs to be added to vegetables and fruits to remove pigment interference, while grains and nuts only need C18 purification. For example, when extracting tomato samples, adding 50mg C18 and 30mg GCB can achieve the best purification effect.

Implementation suggestions

Different matrices should use different amounts of water (5mL for vegetables vs. 7mL for cereals)

Note that the standard solution should be stored at 4°C away from light (6 months for stock solution and 2 months for working solution)

When optimizing mass spectrometry parameters, focus on the fragmentation voltage (80V for flutosulfuron-methyl and 120V for flutosulfuron-methyl)

More samples: DL/T 368-2010 JGJ 94-2008 JC/T 2453-2018

Sample only — not a preview of SN/T 5365-2022

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