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Time since discharge of rifles.

机译:自步枪放电以来的时间。

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The estimation of time since the latest discharge of rifles has been achieved by the SPME sampling technique and the GC-TEA analytical system. An unidentified compound, designated as the TEA2 compound, was detected in all the rifles investigated. The same compound was observed in shotguns and spent cartridges in our previous work. This compound escapes rapidly from the inside of rifle barrels, but can still be detected there one to two months after the shooting. The decrease of the TEA2 peak with time after shooting is non-exponential, and the curve-fitting procedure proposed for the estimation of time since discharge of shotguns can be applied also for rifles.
机译:通过SPME采样技术和GC-TEA分析系统可以估算出自最近一次发射步枪以来的时间。在所有调查的步枪中都检测到一种未鉴定的化合物,称为TEA2化合物。在我们以前的工作中,在shot弹枪和用过的子弹中观察到相同的化合物。这种化合物从步枪枪管内部迅速逸出,但在射击后一到两个月仍可在其中被发现。射击后TEA2峰值随时间的减少是非指数的,并且自since弹枪放电以来为估计时间而建议的曲线拟合程序也可用于步枪。

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