Mass spectrometers are precision analytical instruments used to measure the mass-to-charge ratio of ions, enabling identification and quantification of chemical compounds in a sample. The process typically involves ionizing molecules, separating the ions based on their mass and charge, and detecting them to generate a mass spectrum. This spectrum provides detailed information on molecular structure, composition, isotopic distribution, and trace elements. Mass spectrometry is widely applied in chemistry, biochemistry, pharmaceuticals, environmental analysis, forensics, and materials science, making it essential for research, quality control, and detecting compounds with high sensitivity and accuracy.