GB 23200.77-2016
National food safety standards— Determination of halfenprox residue in foods (English Version)

Standard No.

GB 23200.77-2016

Language

Chinese, Available in English version

Release Date

2016

Published By

National Health Commission of the People's Republic of China

Latest

GB 23200.77-2016

Replace

SN/T 2431-2010

Introduction

1. Background and significance of standard formulation

GB 23200.77-2016 "National Food Safety Standard: Detection Method of Tea Mite Vinegar Residue in Food" is an important standard formulated for food safety issues. This standard replaces the original SN/T 2431-2010, mainly updating and optimizing the detection method, especially using gas chromatography and gas chromatography-mass spectrometry technology to ensure high sensitivity and accuracy of the detection results.

2. Scope and applicability of the standard

This standard is applicable to the detection of tea mite vinegar residues in a variety of foods, including asparagus, potatoes, onions, pears, peaches, corn, buckwheat, tea, vinegar, honey, walnut kernels, rabbit meat, chicken liver, shrimp, chicken, etc. Other foods can also be implemented as a reference.

3. Comparison table of standard frameworks

Standard items	SN/T 2431-2010	GB 23200.77-2016
Standard name	Determination method for chlorpyrifos residues in imported and exported foods	National food safety standardDetermination method for chlorpyrifos residues in foods
Scope of application	Exported food	All kinds of food, including other foods can be implemented as a reference
Detection method	High performance liquid chromatography	Gas chromatography determination and mass spectrometry confirmation

4. Analysis of the detection method

Extraction steps:Different solvents are used according to different food types. For example, vegetables and fruits use a mixed solvent of ethyl acetate and cyclohexane, while animal-derived foods are extracted with acetic acid.

Purification process:Including gel chromatography purification and solid phase extraction column purification to ensure the purity of the residue.

Determination and confirmation:A DB-1301 quartz capillary gas chromatography column is used for determination, and gas chromatography-mass spectrometry is used to confirm positive samples.

5. Implementation recommendations

Case study: Laboratory operation recommendations

• Reagent preparation:All reagents must be analytically pure, and special attention should be paid to the preparation and storage conditions of standard stock solutions.
• Instrument calibration: Regularly calibrate the gas chromatograph and mass spectrometer to ensure detection accuracy.
• Sample processing: Strictly follow the sampling location and storage requirements to avoid contamination or residue changes.

GB 23200.77-2016 Referenced Document

• GB 2763 National Food Safety Standard Maximum Residue Limits of Pesticides in Food*， 2021-03-03 Update
• GB/T 6682 Water for analytical laboratory use.Specification and test methods

GB 23200.77-2016 history

• 2016 GB 23200.77-2016 National food safety standards— Determination of halfenprox residue in foods

GB 23200.77-2016 National food safety standards— Determination of halfenprox residue in foods has been changed from SN/T 2431-2010 Determination of halfenprox residues in food for import and export .

Topics on standards and specifications

Standard and Specification

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