GB/T 35418-2017 Determination of impurity elements in carbon nanotubes in the field of nanotechnology by using Inductance Coupled Plasma Mass spectrometry. The standard specifies the required equipment and specifies the parameters of the Inductance Coupled Inductively Coupled Plasma Mass Spectrometer (ICP-MS) in detail. For carbon nanotube samples, the whole process from pre-treatment to the use of this instrument to detect impurity elements is described. Through standardized operation, the content of various impurity elements in carbon nanotubes can be accurately determined. This standard provides a reliable means for carbon nanotube production and mass detection, helps to improve product purity, and promotes the standardized development of the nanotechnology industry.