Glass fragments, often found at crime scenes, can be used as physical evidence to prove contact between the suspect and the victim.Although glass cannot be distinguished by the observation of appearance, discrimination is possible by knowledge of elemental composition.
Amounts of trace elements are not controlled during the manufacturing process, so each type of glass has a unique elemental composition.
The work of a chemist consists of finding a technique which can determine the exact amount of the different trace elements present in the fragments.
Most of the techniques used cannot analyse solid materials, so the challenge is to find a good way to dissolve all types of glass.
Unfortunately, until today no universal technique has been found to do so for all types of glass.
Goudesone Frauke
Glass fragments, often found at crime scenes, can be used as physical evidence to prove contact between the suspect and the victim.
BeantwoordenVerwijderenAlthough glass cannot be distinguished by the observation of appearance, discrimination is possible by knowledge of [its] elemental composition.
Amounts of trace elements are not controlled during the manufacturing process, so each type of glass has a unique elemental composition.
The work of a chemist consists of finding a technique which can determine the exact amount of the different trace elements present in the fragments.
Most of the techniques used cannot analyse solid materials, so the challenge is to find a good way to dissolve all types of glass.
Unfortunately, until today no universal technique has been found to do so for all types of glass.
Good flow and easy to read + good English
I would have liked it if you had linked back to the beginning: what's the consequence of this for CSI
good job,
olaf