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Forensic sciences--Examination methods for caffeine in suspected drugs--LC and LC-MS
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Basic data
| Standard ID | GA/T 2035-2023 (GA/T2035-2023) |
| Description (Translated English) | Forensic sciences--Examination methods for caffeine 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 | 13,119 |
| Date of Issue | 2023-03-01 |
| Date of Implementation | 2023-12-01 |
| Issuing agency(ies) | Ministry of Public Security |
GA/T 2035-2023: Forensic sciences--Examination methods for caffeine in suspected drugs--LC and LC-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
Liquid Chromatography and Liquid Chromatography-Mass Spectrometry
LC and LC-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: Jiaozuo Municipal Public Security Bureau, Appraisal Center of the Ministry of Public Security, Heilongjiang Provincial Public Security Department, Anti-drug Intelligence Technology Center of the Ministry of Public Security, China
National Criminal Police Academy, Henan Provincial Public Security Bureau, Zhengzhou Municipal Public Security Bureau:
The main drafters of this document: Zhang Qiang, Ju Yanyan, Han Bin, Shi Min, Zheng Hui, Qiao Yanling, Xing Limei, Ma Huacheng, Chen Jianxu, Zhang Yanchun,
Kong Weigang, Zhang Jianheng:
Forensic Science Suspected Drug Test for Caffeine
Liquid Chromatography and Liquid Chromatography-Mass Spectrometry
1 Scope
This document specifies the liquid chromatography-mass spectrometry (LC-MS) method and liquid chromatographic
Spectrum (LC) 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 6682 Analytical laboratory water specifications and test methods
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 samples (see Appendix A for compound information) was extracted with an organic solvent: liquid chromatography-mass spectrometry
The qualitative judgment was based on retention time, characteristic ions and ion-pair abundance ratio of mass spectrometry; liquid chromatography was used for detection, and the chromatographic peak area was used as the basis for qualitative judgment:
As a quantitative basis, the quantitative analysis was carried out with the external standard single point method or the external standard standard curve method:
5 Reagents and Materials
5:1 Reagents
The experimental water should meet the first-class water specified in GB/T 6682: Unless otherwise stated, the reagents used in the analysis are chromatographic
Pure, reagents include:
a) Acetonitrile;
b) Methanol;
c) Standard solution:
1) Standard substance stock solution: 1:0mg/mL standard caffeine standard substance stock solution, refrigerated storage at 0°C~4°C, valid for 12 days
month;
2) The standard working solution is divided into the following four categories according to the experimental requirements:
...
