This paper summarizes the application status of ICP-MS technology in the detection of trace heavy metals in water bodies. The main problems of complex matrix interference, polyatomic ion interference, memory effect and insufficient mass resolution are analyzed, and the optimization countermeasures of optimizing the working parameters of collision reaction pool, adopting mathematical correction model, improving injection system and applying high resolution mass spectrometry are proposed. The research shows that, through system optimization and technical innovation, it is expected to improve the application efficiency of ICP-MS in water trace heavy metal detection, and provide reliable technical support for water environment quality monitoring.

ICP-MS  /  trace heavy metal  /  matrix interference