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GA/T 2021-2023: Forensic sciences - Examination methods for 2′-chlorodiazepam and 4′-chlorodiazepam in suspected drugs - GC and GC-MS
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Forensic sciences - Examination methods for 2′-chlorodiazepam and 4′-chlorodiazepam in suspected drugs - GC and GC-MS
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GA/T 2021-2023
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Basic data | Standard ID | GA/T 2021-2023 (GA/T2021-2023) | | Description (Translated English) | Forensic sciences - Examination methods for 2��-chlorodiazepam and 4��-chlorodiazepam in suspected drugs - GC and GC-MS | | Sector / Industry | Public Security (Police) Industry Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 13.310 | | Word Count Estimation | 16,154 | | Date of Issue | 2023-03-01 | | Date of Implementation | 2023-12-01 | | Issuing agency(ies) | Ministry of Public Security | GA/T 2021-2023: Forensic sciences - Examination methods for 2′-chlorodiazepam and 4′-chlorodiazepam in suspected drugs - GC and GC-MS
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ICS 13.310
CCSA92
Public safety industry standards of the People's Republic of China
Forensic Science Suspected Drugs 2'-Clodiazepam and
4'-Clodiazepam test gas chromatography and
Gas Chromatography-Mass Spectrometry
Published on 2023-03-01
Implemented on 2023-12-01
Released by the Ministry of Public Security of the People's Republic of China
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 submitted by the Criminal Investigation Bureau of the Ministry of Public Security.
This document is under the jurisdiction of the Toxicology Analysis Sub-Technical Committee of the National Technical Committee for Standardization of Criminal Technology (SAC/TC179/SC1).
This document was drafted by. Beijing Municipal Public Security Bureau Criminal Investigation Corps, Shanghai Municipal Public Security Bureau Criminal Science and Technology Management Center, Guangdong Provincial Public Security Bureau
Department Criminal Technology Center, Guangxi Zhuang Autonomous Region Public Security Department Criminal Investigation Corps, Zibo Municipal Public Security Bureau, Hangzhou Municipal Public Security Bureau, Hefei Municipal Public Security Bureau, Hunan
Provincial Public Security Department Physical Evidence Identification Center, Ministry of Public Security Anti-Narcotics Intelligence Technology Center, Hohhot Municipal Public Security Bureau, Shanxi Provincial Public Security Department Science and Technology Department, Datong Municipal Public Security Bureau
Security Bureau, Nanjing Anti-Narcotics Detachment.
The main drafters of this document. Liu Hua, Yang Shiyun, Zhang Ying, Qiao Jing, Wang Yanyan, Xin Guobin, Liu Yongtao, Wei Juanna, Zhang Wenfang, Xu Zizhen,
Qin Shiyang, Zhu Kongwen, Li Mengmeng, Zhang Yurong, Liang Chen, Pei Maoqing, Zhang Liang, Huang Kejian, Liu Xiaofeng, Guofei, Li Xiaofei, Ying Jianbo, Song Xin,
Wu Hai, Gao Mi, Chen Jie, Bayinfu, Wu Zhipeng, Yan Zhiqiang, Zhang Gaoqin, Guo Liang, Zhang Zhonghui.
Forensic Science Suspected Drugs 2'-Clodiazepam and
4'-Clodiazepam test gas chromatography and
Gas Chromatography-Mass Spectrometry
1 Scope
This document describes the gas chromatography-mass spectrometry (GC-MS) determination of 2'-chlordiazepam and 4'-chlordiazepam in suspected narcotics in the field of forensic science.
sexual testing method and gas chromatography (GC) quantitative testing method.
This document is applicable to the qualitative and quantitative analysis of 2'-chlordiazepam and 4'-chlordiazepam in suspected drugs in the field of forensic science.
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
GB/T 27418 Evaluation and expression of measurement uncertainty
GA/T 122 Toxicological analysis terminology
3 Terms and definitions
The terms and definitions defined in GA/T 122 apply to this document.
4 Principles
Extract 2'-chlordiazepam and 4'-chlordiazepam from the suspected drugs (see Appendix A for compound information). Using gas chromatography-mass
For spectrometric detection, the retention time, mass spectrum characteristic ions and ion abundance ratio are used as the basis for qualitative judgment; for gas chromatography detection, the chromatographic peaks are used for detection.
The area was used as the quantitative basis, and the external standard single point method or the external standard standard curve method was used for quantitative analysis.
5 Reagents and materials
5.1 Reagents
Unless otherwise stated, the reagents used in the analysis were of analytical grade. Reagents include methanol and standard solutions.
a) Methanol.
b) Standard solution.
1) Standard material stock solution. After conversion according to the purity and salt type of the 2'-chlordiazepam and 4'-chlordiazepam standard materials, weigh each
Appropriate amount, use methanol to prepare 1.0 mg/mL 2'-chlordiazepam and 4'-chlordiazepam standard material stock solutions respectively.
Seal, store below -18℃, valid for 12 months, or use commercially available standard solutions.
2) Standard working solutions are divided into the following four categories according to experimental requirements.
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