Chromatography techniques are widely used in laboratories to separate and analyze complex mixtures. Chromatography involves the separation of compounds based on their chemical and physical properties. There are different types of chromatography techniques, such as gas chromatography, liquid chromatography, and ion chromatography. Each of these techniques uses different principles and instrumentation to separate compounds. Chromatography techniques are commonly used in chemistry, biochemistry, and pharmaceutical research to analyze and identify complex mixtures, such as proteins, nucleic acids, and drugs.