Analytical Chemistry is a branch of chemistry focused on the qualitative and quantitative analysis of chemical substances. It involves the use of various techniques and instruments to identify the composition of materials, measure their properties, and determine their concentrations. This field plays a critical role in many industries, including pharmaceuticals, environmental monitoring, and food safety, by providing essential data that informs research, quality control, and regulatory compliance. Key methods employed in analytical chemistry include spectroscopy, chromatography, and mass spectrometry, each offering unique advantages for different types of analyses.