Analytical chemists are scientists who specialize in studying the composition of substances. They use various techniques and instruments to identify and quantify chemical compounds in different materials, such as food, pharmaceuticals, and environmental samples. Their work is essential for quality control, safety testing, and research. These professionals often work in laboratories, employing methods like chromatography, spectroscopy, and mass spectrometry. They analyze data to ensure products meet regulatory standards and help develop new materials or drugs. Their findings contribute to advancements in fields like medicine, environmental science, and forensics.