Edexcel GCSE Chemistry · 1CH0
Specification 9.9C · Paper 2
Revise: Flame PhotometryA calibration curve answers “how much of this ion is present?”, whereas comparison with reference data answers “which metal ion is present?”
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GCSE Chemistry · key term
A graph that relates instrument readings to known concentrations of a substance.
Used by Edexcel
Specification 9.9C · Paper 2
Revise: Flame PhotometryA calibration curve answers “how much of this ion is present?”, whereas comparison with reference data answers “which metal ion is present?”
For a calibration curve, start at the sample reading on the vertical axis, move horizontally to the curve, then move vertically to the concentration axis. Include the concentration unit.
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