See the instrument.
Understand the principle.
From a micropipette to a spectrophotometer. Learn what each instrument does, identify its parts and practise explaining the science behind it.
Back to Practical Hub4 instruments to explore

Photometry & pH
Photoelectric colorimeter
Measures light absorption by coloured solutions in suitable biochemical assays.
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Photometry & pH
UV–visible spectrophotometer
Measures absorbance at selected wavelengths or across a spectrum in compatible samples.
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Photometry & pH
Cuvette
Holds a sample in the optical path of a colorimeter or spectrophotometer.
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Photometry & pH
pH meter
Measures the acidity or alkalinity of compatible aqueous samples.
Identify · Locate · Practise 4 viva questions · Zoomable referenceA core teaching collection for both courses. Instrument models and practical lists vary by college. Photographs illustrate specific models; follow your department’s supervised practical programme.