The study and application of methods and procedures for separating, identifying, and quantifying compounds is known as analytical chemistry. In practice, separation, identification, and quantification can be employed alone or in combination with other methods. The process of isolating analytes is known as separation. Qualitative analysis identifies analytes, whereas quantitative chemical analysis establishes the numerical amount or concentration. Analytical chemistry includes both traditional wet chemical techniques and modern instrumental methods.
Synthetic chemistry is the study of the interaction between the structure and reactivity of organic molecules. Physical-chemical science, in particular, combines the experimental skills of chemical research to the study of organic molecule structure while also providing a theoretical foundation. Synthetic chemistry encompasses organic, inorganic, materials, and biological sciences.