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GB/T 23818-2009 English PDF

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GB/T 23818-2009: Determination of imidazolinone herbicide residues in soybean
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PDF similar to GB/T 23818-2009


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Basic data

Standard ID GB/T 23818-2009 (GB/T23818-2009)
Description (Translated English) Determination of imidazolinone herbicide residues in soybean
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard X04
Classification of International Standard 67.060
Word Count Estimation 10,111
Date of Issue 2009-05-25
Date of Implementation 2009-09-01
Regulation (derived from) National Standard Approval Announcement 2009 No.7 (Total No.147)
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 soybean seeds imazapyr, Imazapic, imazethapyr methyl, imazethapyr, HPLC liquid chromatography imazaquin residues and-mass spectrometry/mass spectrometry. This standard applies to soybean seeds imazapyr, determination imazaquin residues, Imazapic, imazethapyr methyl, imazethapyr.

GB/T 23818-2009: Determination of imidazolinone herbicide residues in soybean

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Determination of imidazolinone herbicide residues in soybean ICS 67.060 X04 National Standards of People's Republic of China Determination of soybean imidazolinone herbicide residues Posted 2009-05-25 2009-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The Standard Appendix A, Appendix B are informative appendices. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. China Inspection and Quarantine Science Research Institute, Jiangxi People's Republic of China Exit Inspection and Quarantine. The main drafters of this standard. Li Xiaojuan, Qi Yan, Zhang Xinzhong, accounted Chunrui, Chen Dongdong, on behalf of the Chinese Hui, Peng Tao, Ran Jia, Li Jianzhong, Yang Qiang, LI Shu-juan, Chu Xiaogang. Determination of soybean imidazolinone herbicide residues

1 Scope

This standard specifies the soybean seeds imazapyr, imazethapyr methyl, imazethapyr methyl, imazethapyr, imazaquin residues in high Performance liquid chromatography and liquid chromatography - mass spectrometry/mass spectrometry. This standard applies to soybean seeds imazapyr, imazethapyr methyl, imazethapyr methyl, imazethapyr, imazaquin residues Determination.

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 Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) Principle 3 The sample was extracted with dichloromethane, gel permeation chromatography and liquid-liquid distribution method purified by high performance liquid chromatography and liquid chromatography - mass spectrometry/mass spectrometry Determination, external standard.

4 Reagents and materials

Unless otherwise noted, all reagents were of analytical grade water as a water GB/T 6682 regulations. 4.1 acetonitrile. chromatography. 4.2 hexane. chromatographically pure. 4.3 dichloromethane. 4.4 phosphoric acid. 4.5 filter. 0.22μm, organic phase. 4.6 Standards 4.6.1 imazapyr (imazapyr, CASNo.81334-34-1). purity greater than or equal to 99%. 4.6.2 imazapic (imazapic, CASNo.104098-48-8). purity greater than or equal to 99%. 4.6.3 imazethapyr acid methyl ester (imazamethabenz-methyl, CASNo.81405-85-8). not less than 99.5% purity. 4.6.4 imazethapyr (imazethapyr, CASNo.81335-77-5). purity greater than or equal to 99%. 4.6.5 imazaquin (imazaquin, CASNo.81335-37-7). not less than 99.5% purity. 4.7 standard stock solution. accurately weighed separately each standard 10mg (accurate to 0.1mg), dissolved in acetonitrile and set the volume to 100mL, Preparation of a concentration of 100μg/mL standard stock solution of each standard stock solution at 0 ℃ ~ 4 ℃ stored. 5. Apparatus 5.1 High performance liquid chromatograph. equipped with a UV detector. 5.2 Liquid chromatography - mass spectrometry/mass spectrometer. with an electrospray ionization source. 5.3 mill. 5.4 Sample sieve. mesh size 0.425mm. 5.5 Analysis of balance. a sense of 0.1mg and 1mg.

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