Analytical technique

An analytical technique is a method that is used to determine the concentration of a chemical compound or chemical element. There are a wide variety of techniques used for analysis, from simple weighing (gravimetric analysis) to titrations (titrimetric) to very advanced techniques using highly specialized instrumentation. The most common techniques used in analytical chemistry are the following:

There are many more techniques that have specialized applications, and within each major analytical technique there are many applications and variations of the general techniques.

...
Wikipedia