Raza Ali, Biswas Amitabh, Zehra Ali, Mengesha Abdurrohman
Department of Forensic Chemistry & Toxicology, Abaya Campus, Arba Minch University, Arba Minch, Ethiopia.
Forensic Sci Int Synerg. 2020 Aug 13;2:240-247. doi: 10.1016/j.fsisyn.2020.08.001. eCollection 2020.
The rapid, selective and sensitive detection of trinitrotoluene (TNT), which is widely used in terrorist activities and also a major environmental contaminant is prime concern for the scientific community dealing with environmental problems and national security. This paper described unprecedented CAgP based multiple tier probe employing U.V.-Vis., DLS & SERS techniques for highly selective, rapid and ultrasensitive detection of TNT up to 0.1 nM level. The as synthesized CAgP made possible the naked eye detection of TNT in the form of flakes in real time. The developed method due to its multiple tier approach utilizing the same sample could easily be extended to a high-throughput format and can be utilized for rapid and reliable trace detection of TNT, for on-site screenings in airports, analysis of forensic samples, and environmental analysis.
三硝基甲苯（TNT）广泛用于恐怖活动，也是一种主要的环境污染物，对处理环境问题和国家安全的科学界来说，对其进行快速、选择性和灵敏的检测是首要关注点。本文描述了一种基于CAgP的前所未有的多层探针，采用紫外可见光谱、动态光散射和表面增强拉曼光谱技术，用于高达0.1 nM水平的TNT的高选择性、快速和超灵敏检测。合成的CAgP使得能够实时肉眼检测到片状形式的TNT。所开发的方法由于其利用相同样品的多层方法，可以很容易地扩展到高通量形式，并可用于TNT的快速可靠痕量检测，用于机场的现场筛查、法医样本分析和环境分析。
