GB/T 42429-2023 in English

VALID

Forensic sciences—Examination methods for organic substances of propellants—Liquid chromatography-mass spectrometry

Issued on:2023-08-06
Implemented on:2024-03-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $280.00
$272.00

Standard No:	GB/T 42429-2023
Document status:	VALID
Title in English:	Forensic sciences—Examination methods for organic substances of propellants—Liquid chromatography-mass spectrometry
Title in Chinese:	法庭科学发射药中有机成分检验液相色谱-质谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2023-08-06
Implemented on:	2024-03-01
Chinese Classification:	A92-Crime judging technology
Professional Classification:	GB-National Standard
Related Keywords:	propellants liquid chromatography-mass spectrometry introduction liquid chromatography-mass spectrometry 2 4-dnt liquid chromatography-mass spectrometry mass spectrometry parameters instrument requirements liquid forensic sciences examination methods
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《GB/T 42429-2023法庭科学发射药中有机成分检验液相色谱-质谱法》由TC179（全国刑事技术标准化技术委员会）归口，TC179SC4（全国刑事技术标准化技术委员会理化检验分会）执行，主管部门为公安部。

Introduction

1. Background and significance of standard formulation

GB/T 42429-2023 "Liquid chromatography-mass spectrometry for the detection of organic components in forensic propellants" is an important standard for the field of forensic science research, mainly used for the qualitative analysis of various organic components in propellants and their shooting residues. This standard is under the jurisdiction of the National Criminal Technology Standardization Technical Committee and jointly drafted by the Ministry of Public Security Identification Center and other units, aiming to provide a scientific basis for the detection of explosive residues in judicial practice.

2. Comparison of standard frameworks

Standard dimensions	Scope of application	Detection methods	Technical requirements
Target substances	NG, RDX, HMX, DPA, MC, EC, 2,4-DNT	Liquid chromatography-mass spectrometry (LC-MS)	Qualitative analysis, combining retention time and characteristic ion fragments
Detection mode	Positive/negative ion mode	Multiple reaction monitoring (MRM)	Detailed provisions for target ion pairs and mass spectrometry parameters
Instrument requirements	Liquid chromatography-triple quadrupole mass spectrometer	Electrospray ionization source (ESI)	Equipment performance and operating conditions are strictly regulated

3. Recommendations for standard implementation

Instrument calibration and maintenance:To ensure detection accuracy, it is recommended to calibrate the liquid chromatography-mass spectrometer regularly and adjust the ion source parameters in accordance with standard requirements. At the same time, equipment usage records and maintenance files should be established.

Operator training:Since this standard involves complex technical details, it is recommended to conduct systematic training for relevant personnel, focusing on sample preparation, instrument operation and data interpretation.

More samples: NB/T 47013.2-2015 QC/T 942-2021 JJG 21-2008

Sample only — not a preview of GB/T 42429-2023

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