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使用石墨板传感器和循环方形波剥离电压测量仪在法医样本中快速测定爆炸物2,4,6-三二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二

Sílvia V F Castro¹, Jian F S Pereira¹, Maria M C Souza¹

¹Chemistry Institute, Federal University of Uberlândia, Uberlândia, 38400-902, MG, Brazil.

Mikrochimica acta

|June 14, 2024

概括

一种新的便携式方法使用石墨板传感器在法医样本中快速,顺序检测2,4,6-三二 (TNT) 和环三二 (RDX) 等爆炸物. 这种可靠的设备可以收集和检测各种表面上的爆炸残留物.

科学领域:

分析化学分析化学
电化学电化学电化学
法医科学法医科学法医科学

背景情况:

爆炸物检测对于安全和法医非常重要.
现有的方法可能是缓慢的,复杂的,或需要专门的设备.
对爆炸物需要快速,便携和敏感的分析技术.

研究的目的:

开发一种便携式分析程序,用于连续检测TNT和RDX.
使用石墨板 (GS) 作为爆炸残留物的收集器和检测器.
为了验证该方法在各种表面上的法医应用.

主要方法:

在石墨板电极上循环正方波剥离电压测量.
使用特定的阴极 (TNT) 和阳极 (RDX) 扫描进行序列检测.
将GS电极组装成一个3D打印的电化学电池.

主要成果:

达到低检测极限:TNT的0.1μmol L-1和RDX的2.4μmol L-1.
已建立广泛的线性范围:1150 μmol L−1 (TNT) 和20300 μmol L−1 (RDX).
从各种表面 (金属,织物,手等) 上成功收集和检测TNT和RDX残留物. ) 的情况.
经证实,pentaerythritol tetranitrate (PETN) 的作用没有干扰.

结论:

开发的便携式石墨板传感器可以快速,顺序量化TNT和RDX.
集成的收集器检测系统是有效的法医样本分析.
该方法在现场检测爆炸物方面显示出高可靠性和灵敏性.

关键词:

电化学传感器是一种电化学传感器.爆炸物是一种爆炸物.法医医学法医学的研究.石墨板的石墨板是指石墨板上的石墨板.便携式设备是一种便携式设备.

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