AQA · Chemistry · 8462
GCSE Chemistry: Instrumental methods
Chemical analysis · AQA GCSE Chemistry (8462), specification point 4.8.3.6. Cards are generated from the exam board's own specification for "Instrumental methods", and every card links back to the page it came from. Separate science only. Specification © AQA — used with attribution.
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What can instrumental methods be used to detect and identify?
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Elements and compounds.
State three advantages of instrumental methods over chemical tests.
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They are accurate, sensitive and rapid.
Instrumental methods of analysis are accurate, sensitive and ?.
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rapid
Instrumental methods of analysis are accurate, ? and rapid.
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sensitive
Why are instrumental methods of analysis described as 'sensitive'?
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They can detect and identify very small amounts of a substance that chemical tests would miss.
Why are instrumental methods of analysis described as 'accurate'?
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Machines give reliable, precise results with less chance of human error than chemical tests.
What is the general name for analytical techniques that use machines rather than chemical tests to identify substances?
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Instrumental methods.
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