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YC/T 405.4-2021 English PDF

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YC/T 405.4-2021: Tobacco and tobacco products - Determination of multi-pesticide residues - Part 4: Determination of dithiocarbamate pesticides residues - Gas chromatography-mass spectrometry method
Status: Valid

YC/T 405.4: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YC/T 405.4-2021English209 Add to Cart 3 days [Need to translate] Tobacco and tobacco products - Determination of multi-pesticide residues - Part 4: Determination of dithiocarbamate pesticides residues - Gas chromatography-mass spectrometry method Valid YC/T 405.4-2021
YC/T 405.4-2011English359 Add to Cart 3 days [Need to translate] Tobacco and tobacco products. Determination of multi-pesticide residues. Part 4: Determination of dithiocarbamate pesticides residues. Gas chromatography-mass spectrometry method Obsolete YC/T 405.4-2011

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Standard similar to YC/T 405.4-2021

YC/T 405.5   GB 5606.2   GB/T 5606.1   YC/T 405.2   YC/T 405.3   YC/T 405.1   

Basic data

Standard ID YC/T 405.4-2021 (YC/T405.4-2021)
Description (Translated English) Tobacco and tobacco products - Determination of multi-pesticide residues - Part 4: Determination of dithiocarbamate pesticides residues - Gas chromatography-mass spectrometry method
Sector / Industry Tobacco Industry Standard (Recommended)
Classification of Chinese Standard X87
Word Count Estimation 9,927
Issuing agency(ies) State Tobacco Monopoly Administration

YC/T 405.4-2021: Tobacco and tobacco products - Determination of multi-pesticide residues - Part 4: Determination of dithiocarbamate pesticides residues - Gas chromatography-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.
Tobacco and tobacco products - Determination of multi-pesticide residues - Part 4.Determination of dithiocarbamate pesticides residues - Gas chromatography-mass spectrometry method ICS 65.160 CCSX87 People's Republic of China Tobacco Industry Standards Replacing YC/T 405.4-2011 Determination of Various Pesticide Residues in Tobacco and Tobacco Products Part 4.Dithiocarbamate pesticide residues Determination of Residue by Gas Chromatography-Mass Spectrometry Published on 2021-12-03 2022-03-01 Implementation Released by the State Tobacco Monopoly Administration

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" drafted. This document is part 4 of YC/T 405 "Determination of Multiple Pesticide Residues in Tobacco and Tobacco Products". YC/T 405 has been issued The following parts are distributed. --- Part 1.High performance liquid chromatography-tandem mass spectrometry; --- Part 2.Gas chromatography for the determination of organochlorine and pyrethroid pesticide residues; --- Part 3.Gas chromatography-mass spectrometry and gas chromatography; --- Part 4.Determination of dithiocarbamate pesticide residues by gas chromatography-mass spectrometry. This document replaces YC/T 405.4-2011 "Determination of Multiple Pesticide Residues in Tobacco and Tobacco Products-Part 4.Dithioammonium Determination of Carbamate Pesticide Residues by Gas Chromatography-Mass Spectrometry", compared with YC/T 405.4-2011, except for editorial changes, the main The technical changes are as follows. a) Change "Stannous chloride" to "Stannous chloride dihydrate" (see 5.4, 4.3 of the.2011 edition); b) Change "ultrasonic generator" to "constant temperature water bath oscillator" (see 6.2, 5.2 of the.2011 edition); c) increased the temperature of the water bath (see 8.1, 7.1 of the.2011 edition); d) Changed the oscillation mode (see 8.1, 7.1 of the.2011 edition); e) The weighing sample volume and the volume of extraction solution have been reduced (see 8.1, 7.1 of the.2011 edition). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the State Tobacco Monopoly Administration. This document is under the jurisdiction of National Tobacco Standardization Technical Committee Cigarette Sub-Technical Committee (SAC/TC144/SC1). This document was drafted by. National Tobacco Quality Supervision and Inspection Center, Zhengzhou Tobacco Research Institute, Yunnan Tobacco Quality Supervision and Inspection Station, Guizhou Provincial Tobacco Quality Supervision and Testing Station, Shanghai Tobacco Quality Supervision and Testing Station, Yunnan Tobacco Agricultural Research Institute, Chinese Academy of Agricultural Sciences Grass Research Institute, Sichuan Tobacco Quality Supervision and Testing Station, Guangxi China Tobacco Industry Co., Ltd., Henan China Tobacco Industry Co., Ltd., Fujian China Tobacco Industry Co., Ltd. The main drafters of this document. Deng Huimin, Ji Yuan, Xiong Wei, Chen Li, Chen Dan, Chen Yang, Liu Shanshan, Zhang Yan, Wang Ying, Pan Lining, Yang Fei, Li Zhonghao, Wu Yuping, Wang Weigang, Wang Yuan, Zhang Feng, Sun Lanqian, Lou Xiaohua, Fan Ziyan, Zhang Jianping, Tao Xiaoqiu, Hao Hui, Shi Junli, Wang Xiuguo, Xia Zhicheng, Zhou Hao, Lu Binglin, Faye Wong, Li Yong, Gao Chuanchuan, Liu Tong, Liu Zechun, Bian Zhaoyang, Tang Gangling. The previous versions of this document and its superseded documents are as follows. ---YC/T 405.4-2011; ---This is the first revision. Determination of Various Pesticide Residues in Tobacco and Tobacco Products Part 4.Dithiocarbamate pesticide residues Determination of Residue by Gas Chromatography-Mass Spectrometry

1 Scope

This document specifies the determination of dithiocarbamate pesticide residues in tobacco and tobacco products by gas chromatography-mass spectrometry (GC-MS) determined method. This document applies to the determination of dithiocarbamate pesticide residues in tobacco and tobacco products.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 6379.2 Accuracy (correctness and precision) of measurement methods and results - Part 2.Determining repeatability of standard measurement methods Basic Methods of Reproducibility and Reproducibility GB/T 6682 Analysis Laboratory Water Specifications and Test Methods YC/T 31 Preparation of Tobacco and Tobacco Products Samples and Moisture Determination Oven Method

3 Terms and Definitions

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

4 Principles

The pulverized tobacco powder samples were placed in a closed system, and reacted with an acidic stannous chloride solution under the conditions of heating and shaking in a water bath. The carboxylate was decomposed, and the quantitatively released carbon disulfide (CS2) was absorbed by isooctane, left to cool to room temperature, and the isooctane layer was taken by GC-MS. The content of CS2 was determined, and the residual amount of dithiocarbamate was expressed as the content of CS2.

5 Reagents

Before use, all reagents should be blank tested in the same way as the sample determination to check their purity, the baseline of the blank solvent chromatogram There should be no peaks on the CS2 that interfere with the determination of CS2. 5.1 Water Comply with GB/T 6682, level 3. 5.2 Isooctane Chromatographically pure.

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