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SN/T 0151-2016 (SNT 0151-2016)

Chinese Standard: 'SN/T 0151-2016'
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SN/T 0151-2016English409 Add to Cart Days<=4 Determination of ethion residues in foodstuffs of plant origin for export SN/T 0151-2016 Valid SN/T 0151-2016
SN/T 0151-2016Chinese24 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]

   

BASIC DATA
Standard ID SN/T 0151-2016 (SN/T0151-2016)
Description (Translated English) Determination of ethion residues in foodstuffs of plant origin for export
Sector / Industry Commodity Inspection Standard (Recommended)
Word Count Estimation 22,228
Date of Issue 2016-08-23
Date of Implementation 2017-03-01
Older Standard (superseded by this standard) SN 0151-1992
Drafting Organization Anhui Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China
Administrative Organization National Certification and Accreditation Administration
Regulation (derived from) State-Quality-Inspection-Certification (2016)438
Proposing organization National Certification and Accreditation Administration
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

SN/T 0151-2016
(Determination of ethionyl residues in food of export origin)
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Replace SN 0151-1992
Determination of residual ethion in foods exported from plant sources
Published on.2016-08-23
2017-03-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces SN 0151-1992 "Test Method for Ethyl Phosphorus Residues in Exported Fruits".
Compared with SN 0151-1992, the main technical changes except the editorial modification are as follows.
--- Modified standard sample preparation methods and gas chromatographic conditions.
--- Increased positive samples by gas chromatography mass spectrometry confirmation experiments.
--- Increased sample matrix.
--- Deleted the sampled content.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Anhui Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Zhu Mengyu, Han Fang, Song Wei, Hu Yanyun, Lu Yaning.
The previous versions of the standards replaced by this standard are.
---SN 0151-1992.
Determination of residual ethion in foods exported from plant sources
1 Scope
This standard specifies the gas chromatographic detection and gas chromatography-mass spectrometry confirmation method for the determination of ethion residues in foods exported from plants.
This standard applies to the detection of ethyl sulphate residues in rice, tomato, broccoli, soybean oil, peach, orange, strawberry, apple, tea and so on.
Confirmation.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
3 Principle
The ethyl sulphate residue in the sample is extracted with acetonitrile, and the extract is purified by graphitization carbon black PSA composite solid phase extraction column, using gas chromatography.
The method (GC-FPD) was determined by gas chromatography-mass spectrometry (GC-MS) and quantified by external standard method.
4 reagents and materials
All reagents were of analytical grade unless otherwise specified, and the water was secondary water specified in GB/T 6682.
4.1 Acetonitrile. chromatographic grade.
4.2 Acetone. chromatographic grade.
4.3 Ethyl acetate. chromatographic grade.
4.4 Hexane. Chromatographically pure.
4.5 Toluene. chromatographic grade.
4.6 Anhydrous magnesium sulfate. Stir at 650 ° C for 4 h, store in a sealed container after cooling to room temperature in a desiccator.
4.7 Sodium chloride. Bake at 140 ° C for 4 h, store in a sealed container after cooling to room temperature in a desiccator.
4.8 Acetonitrile-toluene (3 1, by volume). Measure 60 mL of acetonitrile (4.1), add 20 mL of toluene (4.5), and mix.
4.9 Ethionine standard. purity greater than 99%, CAS number. 563-12-2, molecular formula. C9H22O4P2S4.
4.10 Preparation of Ethyl Phosphate Standard Stock Solution. Accurately weigh the appropriate amount of ethion standard (accurate to 0.1mg), dissolve it with a small amount of acetone, and then
A standard stock solution having a concentration of 100 mg/L was prepared with ethyl acetate and stored in a refrigerator (4 ° C).
4.11 Preparation of Ethyl Phosphate Standard Working Solution. According to the needs, use ethyl acetate to prepare a series of standard working solutions at the appropriate concentration before use.
4.12 ENVI-Carb/PSA Solid Phase Extraction Column 1). 500mg/500mg/6mL or equivalent.
1) Non-commercial statement. This is a reference for work convenience only, does not involve commercial purposes, and encourages standard users to try products from different manufacturers.
5 Instruments and equipment
5.1 Gas chromatograph with flame photometric detector (FPD).
Related standard: SN/T 0152-2014    SN/T 0192-2017