GB/T 5121.28-2010 is the 28th part of the chemical analysis method of copper and copper alloys, using Inductance coupled plasma Mass spectrometry. It can simultaneously determine the content of 15 elements such as chromium and iron. The standard clarifies the determination principle, stipulates the equipment and reagents, and describes the Sample Handling steps in detail, covering the whole process from the collection and dissolution of copper and copper alloy samples to the measurement of instruments, including calibrate Linear dispersion drawing, parameter setting and other operations. Through this standard, the element content can be accurately analyzed, providing a powerful means for the quality control of copper and copper alloys, and promoting the standardization of industry testing.