Refrigerant analysis is a valuable tool for detecting contamination in an HVAC system. By analyzing the refrigerant sample, technicians can identify the type and amount of contaminants present, as well as the refrigerant’s chemical composition. This information can help diagnose system problems, identify potential causes of contamination, and inform corrective actions to restore system performance and efficiency. Refrigerant analysis can be performed using various methods, including gas chromatography and spectroscopy.