GB/T 40459-2021 English PDF

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GB/T 40459-2021: Qualitative screening of multi plant growth regulators in fertilizers - Liquid chromatography-tandem mass spectrometry method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40459-2021	279	Add to Cart	3 days	Qualitative screening of multi plant growth regulators in fertilizers - Liquid chromatography-tandem mass spectrometry method	Valid

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Basic data

Standard ID: GB/T 40459-2021 (GB/T40459-2021)
Description (Translated English): Qualitative screening of multi plant growth regulators in fertilizers - Liquid chromatography-tandem mass spectrometry method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G20
Word Count Estimation: 14,136
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40459-2021: Qualitative screening of multi plant growth regulators in fertilizers - Liquid chromatography-tandem mass spectrometry method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Qualitative screening of multi plant growth regulators in fertilizers - Liquid chromatography-tandem mass spectrometry method ICS 65.080 CCSG20 National Standards of People's Republic of China Variety of plant growth regulators in fertilizers Qualitative screening liquid chromatography-mass spectrometry Released on 2021-08-20 2022-03-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China Petroleum and Chemical Industry Federation. This document is under the jurisdiction of the National Standardization Technical Committee for Fertilizers and Soil Conditioners (SAC/TC105). Drafting organizations of this document. Shandong Institute of Product Quality Inspection, Shanghai Institute of Chemical Industry Testing Co., Ltd., Yunnan Chemical Product Quality Supervision Inspection Station, Shandong Agricultural University Fertilizer Technology Co., Ltd., Sichuan Guoguang Agrochemical Co., Ltd., Shandong Chenzhang Biotechnology Co., Ltd., Jinan Tianbang Chemical Co., Ltd., Linyi Inspection and Testing Center. The main drafters of this document. Zhang Juan, Shang Zhaocong, Su Benyu, Zhu Hairong, Chen Xi, Zhao Lin, Zhang Peng, Chen Meng, Yang Yi, Ding Fangjun, Guo Xinsong, Yin Huimin and Zhao Huaining. Variety of plant growth regulators in fertilizers Qualitative screening liquid chromatography-mass spectrometry

1 Scope

This document describes the qualitative screening of various plant growth regulators in fertilizers using liquid chromatography-mass spectrometry. This document is applicable to a variety of plant growth regulators (sodium nitrophenolate, sodium nitrophenolate, 2,4-Dichlorophenoxyacetic acid (2,4-D), abscisic acid, naphthaleneacetic acid, gibberellic acid, indole-3-acetic acid, indolebutyric acid, forchlorfenuron, uniconazole, paclobutrazol, 6-Benzylaminopurine) detection. In this document, the detection limit of indole-3-acetic acid and indolebutyric acid is 0.5mg/kg, and the method detection limit of naphthaleneacetic acid, abscisic acid, gibberellic acid, 2,4-D The detection limit of the method is 0.3 mg/kg, and the detection limit of the sodium nitrophenolate method is 0.1 mg/kg. The detection limit of the method is 0.05mg/kg.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 6682 Analytical laboratory water specifications and test methods

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Principle

The analyte in the sample is ultrasonically extracted with methanol-formic acid aqueous solution, and under the selected working conditions, the liquid chromatography-tandem mass spectrometer is used Qualitative screening and quantitative external standard method.

5 Reagents and materials

5.1 General provisions. Unless otherwise specified, only use reagents confirmed to be analytically pure and first-grade water in GB/T 6682 in the analysis. 5.2 Methanol. chromatographically pure. 5.3 Formic acid. chromatographically pure. 5.4 Formic acid solution (Ⅰ). accurately pipette 0.10mL formic acid (5.3) and dilute with water to 1000mL. 5.5 Formic acid solution (II). accurately pipette 1.0mL formic acid (5.3) and dilute to 1000mL with water. 5.6 Methanol-formic acid solution. accurately measure.200mL of formic acid solution (II) (5.5), dilute to 1000mL with methanol (5.2), and mix. Now with Now use. 5.7 Sodium 2-nitrophenolate, sodium 4-nitrophenolate, sodium 5-nitroo-methoxyphenolate, 2,4-dichlorophenoxyacetic acid (2,4-D), abscisic acid, naphthalene ethyl Chemical Abstracts Registration Number of Standards of Acid, Gibberellic Acid, Indole-3-acetic Acid, Indole Butyric Acid, Forchlorfenuron, Uniconazole, Paclobutrazol, 6-Benzylaminopurine ......

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