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Forensic sciences--Examination methods for caffeine in suspected drugs--GC and GC-MS
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Basic data
| Standard ID | GA/T 2034-2023 (GA/T2034-2023) |
| Description (Translated English) | Forensic sciences--Examination methods for caffeine 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 | 13,156 |
| Date of Issue | 2023-03-01 |
| Date of Implementation | 2023-12-01 |
| Issuing agency(ies) | Ministry of Public Security |
GA/T 2034-2023: Forensic sciences--Examination methods for caffeine in suspected drugs--GC and GC-MS
---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 13:310
CCSA92
People's Republic of China Public Security Industry Standards
Forensic Science Suspected Drug Test for Caffeine
Gas Chromatography and Gas Chromatography-Mass Spectrometry
GC and GC-MS
Released on 2023-03-01
2023-12-01 Implementation
Released by the Ministry of Public Security of the People's Republic of China
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 for Standardization Documents"
drafting:
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document was proposed by the National Criminal Technology Standardization Technical Committee Toxic Analysis Sub-Technical Committee (SAC/TC179/SC1) and submitted
Focus on:
This document was drafted by: Henan Public Security Judicial Appraisal Center, People's Public Security University of China, Physical Evidence Appraisal Center of the Ministry of Public Security, Narcotics Control of the Ministry of Public Security
Information Technology Center, Jiaozuo Public Security Bureau, Zhengzhou Public Security Bureau, Science and Technology Department of Shanxi Provincial Public Security Bureau, Criminal Investigation Bureau of Jilin Provincial Public Security Bureau, Heilongjiang
Provincial Public Security Department Criminal Technology Corps, Qingdao Municipal Public Security Bureau, China Criminal Police Academy:
The main drafters of this document: Ma Huacheng, Chen Jianxu, Deng Chengquan, Chang Xianlei, Lian Jie, Zhang Yanchun, Hou Dengke, Zheng Hui, Wu Jianmei, Ju Yanyan,
Kong Weigang, Zhang Gaoqin, Sun Jilai, Wang Tao, Shao Bo, Lu Jinghan, Xing Limei:
Forensic Science Suspected Drug Test for Caffeine
Gas Chromatography and Gas Chromatography-Mass Spectrometry
1 Scope
This document specifies a gas chromatography-mass spectrometry (GC-MS) method for the qualitative detection of caffeine in suspected drugs in the field of forensic science and gas chromatography
Spectrum (GC) quantitative test method:
This document is applicable to the qualitative and quantitative analysis of caffeine in suspected drugs in the field of forensic science:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
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
The caffeine in the suspected drug (see Appendix A for compound information) was extracted: Detected by gas chromatography-mass spectrometry
The characteristic ions and ion abundance ratio of mass spectrometry were used as the basis for qualitative judgment; gas chromatography was used for detection, and the chromatographic peak area was used as the quantitative basis:
Quantitative analysis was carried out by external standard single point method or internal standard standard curve method:
5 Reagents and Materials
5:1 Reagents
The reagents used in the analysis are analytically pure, and the reagents include:
a) Methanol;
b) Internal standard: propyl spasmolyticin (SKF525A) (purity not less than 95%);
c) anhydrous sodium sulfate;
d) Standard solution:
1) Standard substance stock solution: Weigh an appropriate amount of caffeine standard substance, and prepare 1:0 mg/mL caffeine standard substance with methanol
Quality stock solution, stored frozen below -18°C, valid for 12 months;
2) The standard working solution is divided into the following five categories according to the test requirements:
---Standard working solution for qualitative use: pipette an appropriate amount of caffeine standard substance stock solution, dilute with methanol, and prepare
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