A portable metal analyzer is a spectrometer based on XRF (X-ray Fluorescence) spectroscopy technology, primarily composed of a detector, CPU, and memory. Its portability and accuracy make it a crucial tool in fields such as alloys, minerals, environment, and consumer goods.

Handheld spectrometers must have high resolution and signal-to-noise ratio, superior intensity and wavelength accuracy, strong resistance to external interference, and excellent instrument stability. The software of the instrument should be capable of performing complex mathematical calculations such as derivatives and deconvolution, calculate spectral similarity, conduct pattern recognition analysis, support multivariate calibration analysis, and allow users to create and search their own spectral libraries.