Due to the continuous expansion of scientific research and social services, the components of the objects that researchers/technicians need to analyze are becoming increasingly complex, and the content of the elements to be tested is also decreasing. When facing the analysis of complex matrix samples in industries such as the environment, geology and minerals, food, biology, semiconductors, petrochemicals, metallurgy, and nuclear industry, it is often difficult to obtain accurate results due to matrix effects and other types of interference. Based on this spectral education technology, an intelligent fully automatic ion exchange system EXPEC 750 has been developed. It not only separates the tested elements from easily ionized matrix elements, but also achieves enrichment of the tested elements, separates interference, and improves detection sensitivity. It has significant advantages in detecting trace and even ultra trace elements in samples.