Chromatography refers to a set of techniques used to separate and analyze components in a mixture based on their different interactions with a stationary phase and a mobile phase. This skill encompasses various methods, including gas chromatography and liquid chromatography, which enable the identification and quantification of substances in complex samples. Knowledge of Chromatography is applied in fields such as chemistry, biochemistry, and environmental science to purify compounds, assess purity, and conduct quality control in pharmaceuticals and food products.

High-Performance Liquid Chromatography (HPLC) is a specialized analytical technique used to separate, identify, and quantify components in a sample. It involves the passing of a liquid sample through a column packed with stationary phase material that interacts with the components in the sample, leading to their separation. HPLC requires the use of specialized equipment and skilled technicians to perform the analysis and interpret the results. This technique is widely used in various fields, including pharmaceuticals, food science, environmental science, and forensic science.

Method Development is the process of designing and optimizing analytical methods, which uses systematic procedures to measure specific attributes of a drug substance or drug product. It is applied in pharmaceutical research and development, which ensures that analytical methods are accurate, reproducible, and suitable for their intended purpose. This process supports formulation studies, quality control, and regulatory evaluation.

Stability Testing refers to the process of evaluating the reliability and performance of a product or system over time under various conditions. This skill involves assessing how well a product maintains its functionality and quality when subjected to different environmental factors, usage patterns, and stress levels. Knowledge of Stability Testing is used to identify potential issues, ensure compliance with standards, and enhance product durability by informing design improvements and quality assurance practices.

Ultraviolet-Visible Spectroscopy (UV/VIS) refers to an analytical technique that measures how a substance absorbs ultraviolet and visible light. It is used to identify compounds, estimate concentration, and evaluate sample properties in laboratory and quality control settings. The skill involves preparing samples, operating spectrophotometric equipment, and interpreting absorption patterns to support testing and analysis.