Instrumental Methods
- Created by: Abbie
- Created on: 20-05-12 14:09
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Instrumental Methods
Machines can analyse unknown substances:
- Used for medical purposes, police forensic work, environmental analysis, checking whether an athlete has taken drugs...
- Advances in electronics and computing have made more advanced analysis possible
Advantages:
- Can be operated by technicians whereas lab methods need trained chemists
- More accurate than lab methods and can detect the tiniest amounts of substances
- Much faster than lab methods and tests can be automated
Disadvantages:
- Very expensive to buy, run and maintain the machines
Atomic absorption spectroscopy:
- A bit like a flame test machine, used for indentifying metals
- Patterns of light absorbed by the metals in the sample are analysed - each metal produces a different…
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