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GB/T 42429-2023: Forensic sciences - Examination methods for organic substances of propellants - Liquid chromatography-mass spectrometry
Status: Valid
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| GB/T 42429-2023 | English | 349 |
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Forensic sciences - Examination methods for organic substances of propellants - Liquid chromatography-mass spectrometry
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GB/T 42429-2023
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Basic data | Standard ID | GB/T 42429-2023 (GB/T42429-2023) | | Description (Translated English) | Forensic sciences - Examination methods for organic substances of propellants - Liquid chromatography-mass spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 07.140 | | Word Count Estimation | 18,180 | | Date of Issue | 2023-08-06 | | Date of Implementation | 2024-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 42429-2023: Forensic sciences - Examination methods for organic substances of propellants - Liquid chromatography-mass spectrometry
---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.
ICS 07.140
CCSA92
National Standards of People's Republic of China
Forensic Science Testing of Organic Components in Propellant Powder
Liquid Chromatography-Mass Spectrometry
Published on 2023-08-06
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is under the jurisdiction of the National Criminal Technology Standardization Technical Committee (SAC/TC179).
This document was drafted by. Identification Center of the Ministry of Public Security, Criminal Investigation Corps of the Public Security Department of Guangxi Zhuang Autonomous Region, and Xi'an Institute of Modern Chemistry.
The main drafters of this document. Mei Hongcheng, Zhu Jun, Hu Can, Zhang Guannan, Wang Ping, Liu Zhanfang, Sun Yuyou, Zheng Jili, Huang Kejian, Yang Ning, Lu Dianlin,
Zhang Gao.
Forensic Science Testing of Organic Components in Propellant Powder
Liquid Chromatography-Mass Spectrometry
1 Scope
This document describes the organic components of nitroglycerin (glycerin trinitrate, NG),
RDX (cyclotrimethylenetetranitramine, RDX), Octogen (cyclotetramethylenetetranitramine, HMX), diphenylamine (DPA), No. Ⅱ central agent
(N,N'-dimethyl-N,N'-diphenyl urea, MC), No. 1 centralizing agent (N,N'-diethyl-N,N'-diphenyl urea, EC) and 2,4-dinitrotoluene
(2,4-DNT) testing principles, reagents and materials, instruments and equipment, sample preparation, instrument testing, result analysis and evaluation.
This document applies to NG, RDX, HMX, DPA, MC, EC, 2,4-
Qualitative analysis of DNT can also be implemented in other fields.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GA/T 242 Terminology for physical and chemical examination of trace evidence in forensic science
GA/T 1944 Forensic Science Liquid Chromatography-Mass Spectrometry for Testing of 6 Organic Explosives and Their Explosive Residues including Trinitrotoluene
3 Terms and definitions
The terms and definitions defined in GB/T 6682, GA/T 242 and GA/T 1944 apply to this document.
4 Principles
The samples were extracted with organic solvents and tested by liquid chromatography-mass spectrometry. Based on liquid chromatography retention time, precursor ion/product ion mass spectrometry characteristic ions
Fragment peaks and relative abundance were used as the basis for judgment, and qualitative analysis was conducted on NG, RDX, HMX, DPA, MC, EC, and 2,4-DNT.
5 Reagents and materials
5.1 Water, GB/T 6682, Level 1.
5.2 Methanol (CH3OH), chromatographically pure.
5.3 Acetone (CH3COCH3), chromatographically pure.
5.4 Ammonium formate (HCOONH4), chromatographically pure.
5.5 Ammonium chloride (NH4Cl), chromatographically pure.
5.6 NG, RDX, HMX, DPA, MC, EC, 2,4-DNT standard materials (or reference materials).
5.7 0.15mol/L ammonium formate and 0.05mol/L ammonium chloride mixed aqueous solution. weigh 0.0946g ammonium formate and 0.0267g ammonium chloride, add water
Dissolve and adjust the volume to 10mL, store in a refrigerator, and have a validity period of 1 month.
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