[Inspection of left metal particles on skin impacted by the steel hammers].
OBJECTIVE
To establish a new method to estimate injury-tool by analyzing the components of left metal particles from hammers impact on pig skin and filter paper using scanning electron microscope and energy dispersive X-ray spectrometer (SEM-EDX).


METHODS
The pig skin and filter paper were stricken by two steel hammers. The left metal particles were examined by SEM-EDX and the results were statistically analyzed by SPSS 13.0.


RESULTS
The characteristics of left particles showed stable by several impacts using one steel hammer. The left particles showed no statistical difference for impact on pig skin and filter paper. The left particles displayed a statistical difference using two hammer with different components.


CONCLUSIONS
SEM-EDX can be used to detect the left metal particles from the steel hammer and can provide a method for estimating injury-tool.
School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China. wysdfz@163.com
Yang
Y
Wang
Chun-mei
CM
Zhao
Qi
Q
Wang
Li
L
Liu
D000818:Animals; D005554:Forensic Medicine / Q000379:methods*; D007501:Iron / Q000032:analysis; D008345:Manganese / Q000032:analysis; D008670:Metals / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning / Q000379:methods; D023421:Models, Animal; D012867:Skin / Q000737:chemistry / Q000293:injuries*; D013052:Spectrometry, X-Ray Emission / Q000379:methods; D013552:Swine; D014949:Wounds, Nonpenetrating / Q000473:pathology*
D008670:Metals; D008345:Manganese; D007501:Iron