ICP-MS (inductively coupled plasma mass spectrometry) is a mass spectrometry method that uses ICP as the ionization source, especially multi-receive-inductively coupled plasma mass spectrometry (MC-ICP-MS) and laser ablation inductive coupling in the past decade The emergence of new technologies such as plasma mass spectrometry (_A-ICP-MS) has made ICP-MS technology develop rapidly. ICP-MS was used to determine the elements in infant milk powder, and the recovery rate of spiked elements was 83.5% ~ 107.9%, and the RSD was 2.3% ~ 8.8%. Sandrine et al. [30] used ICP-MS- to determine 21 elements in foods, RSD≤10% spiked recovery is mostly between 80% ~ 120%, and the lower detection limit is 0.001-0.472 mg / kg.