GB/T 29636-2023 in English
VALIDExamination methods for methamphetamine in suspected drugs
- Issued on:2023-08-06
- Implemented on:2024-03-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$272.00
《GB/T 29636-2023疑似毒品中甲基苯丙胺检验》由TC179（全国刑事技术标准化技术委员会）归口，TC179SC1（全国刑事技术标准化技术委员会毒物分析分会）执行，主管部门为公安部。
Introduction
GB/T 29636—2023 Standard Overview
Methamphetamine is an important standard in the field of drug analysis and is widely used in law enforcement and judicial practice. This standard specifies in detail the qualitative test methods of Gas Chromatography-Mass Spectrometry (GC-MS) and Liquid Chromatography-Mass Spectrometry (LC-MS), as well as the quantitative analysis steps of Gas Chromatography (GC) and Liquid Chromatography (LC).
Standard Comparison Table
| Detection Method | Reagent Requirements | Instrument Configuration | Analysis Steps |
|---|---|---|---|
| GC-MS | Methanol, acetonitrile, PSA, anhydrous sodium sulfate, etc. | Gas Chromatograph (FID detector), mass spectrometer (EI source) | Sample extraction→injection→mass spectrometry analysis→qualitative judgment |
| LC-MS | Water, methanol, acetonitrile, formic acid, etc. | Liquid Chromatograph (DAD or UV detector), mass spectrometer (electrospray source) | Sample preparation→Gradient elution→MRM detection→Qualitative and quantitative |
| GC | Methanol, acetonitrile, PSA, etc. | Gas chromatograph (FID detector) | Sample extraction→External standard or internal standard quantitative analysis |
| LC | Buffer solution, formic acid aqueous solution, etc. | Liquid chromatograph (UV detector) | Sample preparation→Gradient elution→Quantitative analysis |
Implementation suggestions
1. Laboratory hardware requirements
The laboratory needs to be equipped with Gas chromatograph (GC), Liquid chromatograph (LC) and corresponding mass spectrometers. It is recommended to give priority to instruments with high sensitivity and stability to ensure the accuracy of the test results.
2. Personnel training
Operators need to receive professional training and be familiar with the operating procedures and data processing methods of instruments such as GC-MS and LC-MS. It is recommended to conduct internal training and certification examinations regularly to ensure that technical personnel are qualified for the job.
3. Sample preparation and pretreatment
Sample homogenization, extraction and purification are key steps. Solid samples need to be ground into fine particles, and liquid samples need to be fully mixed. It is recommended to adopt a standardized sample preparation process and regularly verify the extraction efficiency.
4. Data Analysis and Quality Control
Establish a complete data analysis system to ensure accurate analysis of mass spectrometry data and reliable calculation of quantitative results. At the same time, implement an internal quality control plan to monitor uncertainties in the testing process through parallel sample analysis and standard substance verification.
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