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Forensic sciences - Examination methods for nimetazepam in suspected drugs - LC and LC-MS
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Basic data
| Standard ID | GA/T 2037-2023 (GA/T2037-2023) |
| Description (Translated English) | Forensic sciences - Examination methods for nimetazepam in suspected drugs - LC and LC-MS |
| Sector / Industry | Public Security (Police) Industry Standard (Recommended) |
| Classification of Chinese Standard | A92 |
| Classification of International Standard | 13.310 |
| Word Count Estimation | 14,172 |
| Date of Issue | 2023-03-01 |
| Date of Implementation | 2023-12-01 |
| Issuing agency(ies) | Ministry of Public Security |
GA/T 2037-2023: Forensic sciences - Examination methods for nimetazepam in suspected drugs - LC and LC-MS
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ICS 13.310
CCSA92
Public safety industry standards of the People's Republic of China
Forensic science tests nimezepam in suspected drug
Liquid Chromatography and Liquid Chromatography-Mass Spectrometry
LCandLC-MS
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 proposed and coordinated by the National Criminal Technology Standardization Technical Committee (SAC/TC179).
This document was drafted by. Detachment 8 of the Criminal Investigation Corps of the Beijing Municipal Public Security Bureau, Identification Center of the Ministry of Public Security, Shenzhen Public Security Bureau, Yunnan Provincial Public Security Bureau
Identification Center, China Criminal Police College.
The main drafters of this document. Qiao Jing, Liu Hua, Qin Shiyang, Zhang Wenfang, Wang Yanyan, Zhang Ying, Yang Jifeng, Yang Shiyun, Liu Yongtao, Xu Zizhen,
Li Mengmeng, Xin Guobin, Wang Ruihua, Wang Aihua, Wang Fanglin, Yu Zhongshan, Li Shuhui, Zhao Wensong, Xing Limei.
Forensic science tests nimezepam in suspected drug
Liquid Chromatography and Liquid Chromatography-Mass Spectrometry
1 Scope
This document specifies the liquid chromatography-mass spectrometry (LC-MS) qualitative testing method and liquid chromatography method for nimezepam in suspected drugs in the field of forensic science.
Chromatography (LC) quantitative testing method.
This document is applicable to the qualitative and quantitative analysis of nimezepam 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 nimezepam from suspected drug samples (see Table A.1 in Appendix A for basic information on the compound). Using liquid chromatography-mass
Spectrum detection is based on retention time, mass spectrum characteristic ion pairs and ion pair abundance ratios as the basis for qualitative judgment; liquid chromatography detection is used, and chromatographic peaks are used as the basis for qualitative judgment.
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
The experimental water should comply with the first-class water specified in GB/T 6682.Unless otherwise stated, the reagents used in the analysis are of chromatographic grade.
Reagents include.
a) Acetonitrile;
b) methanol;
c) 20mmol/L ammonium formate solution (0.1% formic acid). Weigh 1260mg of ammonium formate, dissolve it in.200mL of water, and measure the formic acid
1.0mL, drop into the above ammonium formate solution, transfer to a 1000mL volumetric flask and dilute to volume with water;
d) Acetonitrile solution (0.1% formic acid) (take preparation of 1000mL as an example). Measure 1.0mL of formic acid, dilute with.200mL of acetonitrile, and transfer
Dilute to volume with acetonitrile in a 1000mL volumetric flask;
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