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GB/T 23750-2009 English PDF

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GB/T 23750-2009: Determination of Glyphosate residues in plant products -- GC-MS method
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GB/T 23750-2009English234 Add to Cart 3 days [Need to translate] Determination of Glyphosate residues in plant products -- GC-MS method Valid GB/T 23750-2009

PDF similar to GB/T 23750-2009


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Basic data

Standard ID GB/T 23750-2009 (GB/T23750-2009)
Description (Translated English) Determination of Glyphosate residues in plant products -- GC-MS method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard X10
Classification of International Standard 67.050
Word Count Estimation 12,178
Date of Issue 2009-05-13
Date of Implementation 2009-08-01
Adopted Standard AOAC Official Method 2000.05 " crop glyphosate and AMPA 's determination ", IDT
Regulation (derived from) PRC National Standard Approval Announcement 2009 No.6 (Total No.146)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the vegetable products glyphosate (PMG) and its degradation products aminomethylphosphonic acid (AMPA) residues by gas chromatography-mass spectrometry. This standard applies to cereal grains (soybeans, wheat), fruits (sugar cane, mandarin orange) and other plant products, glyphosate and its degradation product AMPA residues detection and confirmation. This standard limit of quantitation (LOQ): 0. 05mg/kg.

GB/T 23750-2009: Determination of Glyphosate residues in plant products -- GC-MS method

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Determination of Glyphosate residues in plant products. GC-MS method ICS 67.050 X10 National Standards of People's Republic of China Determination of glyphosate residues in plant products Gas chromatography - mass spectrometry Posted 2009-05-13 2009-08-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is equivalent to using the AOAC Official Method 2000.05 "crop Determination of glyphosate and aminomethylphosphonic acid." This standard techniques The operation is consistent with the content of this method, after verification, according GB/T 20001.4-2001 "Rules for drafting standards - Part 4. Chemical analytical Law "AOAC Official Method 2000.05 individual content made editorial changes. The Standard Appendix A and Appendix B are informative. This standard is proposed and managed by China National Institute of Standardization. This standard was drafted. People's Republic of China Shanghai Exit Inspection and Quarantine, the Shanghai Quality and Technical Supervision, People's Republic of China State Liaoning CIQ. The main drafters of this standard. Li Bo, Guo Dehua, Feng Wei, Kara Chan, Xie Yan, Yang Xi whole, red Ni Dan, Li Han. Determination of glyphosate residues in plant products Gas chromatography - mass spectrometry

1 Scope

This standard specifies the plant product glyphosate (PMG) and its degradation products aminomethylphosphonic acid (AMPA) residues gas chromatography - Mass spectrometry. This standard applies to cereal grains (soybeans, wheat), fruits (sugar cane, Gan Cheng) and other vegetable products of glyphosate and its degradation product AMPA Residue detection and confirmation. The standard limit of quantitation (LOQ). 0.05mg/kg.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Use the latest versions of these files. For undated reference documents, the latest versions apply to this standard. Determination of GB/T 5009.3-2003 moisture in foods Principle 3 Samples extracted with water, dried cation exchange column (CAX) purification, and heptafluorobutanol (HFB) and trifluoroacetic anhydride (TFAA) Anti-derivatized After the reaction, gas chromatography - mass spectrometer measurement, external standard.

4 Reagents and materials

Unless otherwise specified, the reagents were of analytical grade, water is deionized water. 4.1 ethyl acetate. chromatography. 4.2 Methanol. chromatographically pure. 4.3 dichloromethane. 4.4 hydrochloric acid. 4.5 potassium dihydrogen phosphate (KH2PO4). 4.6 trifluoroacetic anhydride (TFAA). purity ≥99%. 4.7 heptafluorobutanol (HFB). purity ≥98%. 4.8 citral. Purity ≥95%, when the dark brown color was abandoned. 4.9 acidity regulator. Weigh 16g of potassium dihydrogen phosphate was dissolved in 160mL of water and 40mL of methanol was added 13.4mL hydrochloric acid, and mix. 4.10 CAX eluent. amount of each 160mL water, 2.7mL hydrochloric acid and 40mL of methanol, and mix. 4.11 0.2% citral ethyl acetate solution. 100mL ethyl acetate was added 200μL citral, mix, dark cold storage for a period of 1 month. 4.12 Derivative Reagents. trifluoroacetic anhydride (TFAA) - heptafluorobutanol (HFB) (2 + 1, volume ratio), prepared before use, and in the following -40 ℃ Cryogenic refrigerator frozen. 4.13 Glyphosate standards. purity ≥98.0%. 4.14 AMPA standards. purity ≥98.0%. 4.15 glyphosate, aminomethylphosphonic acid standard stock solution. namely, accurately weighed amount of glyphosate, aminomethylphosphonic acid standard polyethylene or

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