- There exist many classical methods of checking for the presence or absence of a particular compound in a given analyte. One such example is the acid test for gold.
- Another example of a classical method for qualitative analysis is the Kastle-Meyer test which employs phenolphthalein as an indicator to check for the presence of haemoglobin in the given analyte.
- Flame tests can be used to check for the presence of specific elements in an analyte by exposing it to a flame and observing the change in the colour of the flame.
- Gravimetric analysis is a classical method of quantitative analysis, which can be used in analytical chemistry to determine the amount of water in a hydrate by heating it and calculating the weight of the water lost.
- One of the better known classical methods of quantitative analysis is volumetric analysis (also known as titration). In the titration method, a reactant is added to the analyte till an equivalence point is obtained.
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