[cs_content][cs_section parallax=”false” separator_top_type=”none” separator_top_height=”50px” separator_top_angle_point=”50″ separator_bottom_type=”none” separator_bottom_height=”50px” separator_bottom_angle_point=”50″ style=”margin: 0px;padding: 45px 0px;”][cs_row inner_container=”true” marginless_columns=”false” style=”margin: 0px auto;padding: 0px;”][cs_column fade=”false” fade_animation=”in” fade_animation_offset=”45px” fade_duration=”750″ type=”1/1″ style=”padding: 0px;”][cs_text]Forensic Chemistry > 5. Much forensic evidence consists of very small samples and sensitive analytical techniques are required > Destructive Testing of Material >[/cs_text][cs_text style=”color: #800000;font-family: “Oxygen”,sans-serif;”]What is meant by the destructive testing of material and explain why this may be a problem in forensic investigations [/cs_text][cs_text]
- Destructive testing, such as heating, burning or reacting gram quantities of a material, involves permanent and irreversible chemical changes. However, destructive testing is deemed as inappropriate as samples that are only available to forensic chemists are smaller than a few milligrams. As a consequence, these materials can no longer be used for future analyses if limited amount of material is available.
- -e.g. Marsh test: involves the destruction of samples by acids to detect arsenic poisoning
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