Atomic emission spectroscopy (AES) is a powerful analytical technique used to identify and quantify elements in diverse sample types. The core principle of AES involves exciting the atoms within a sample, leading to the emission of light at specific wavelengths. This emitted light forms an emission spectrum unique to each element, enabling precise elemental analysis. AES categorizes emission spectra into line, band, and continuous spectra based on the nature of emitted light. Common components of AES include the emission source, monochromator, detector, and readout device. AES finds wide-ranging applications in various fields, such as clinical diagnostics, environmental analysis, metallurgy, and art conservation. However, spectral and chemical interferences can pose challenges in AES, necessitating strategies to overcome them. Despite these challenges, AES remains a fundamental tool for elemental analysis, offering insights into the composition of matter in diverse scientific and industrial applications.