GB/T 8647.6-2006 The content of cadmium, cobalt, copper, manganese, lead and zinc in nickel is determined by flame atomic absorption spectroscopy (AAS). The nickel sample is first processed to dissolve the target element to form a solution. Using a Flame atomization device to atomize these elements, the light spectrum instrument determines the degree of absorption of specific wavelengths of light, known as Absorbance. According to the standard Linear dispersion of each element, the corresponding content is accurately calculated by Absorbance. The standard strictly regulates Sample Handling, instrument operation, data processing and other processes, providing a key means for mass detection of nickel products, and is widely used in nickel production, processing and related industries for quality control.