Abstract
With the development of society, stainless steel products are widely used in people's daily life. At present, the standard for inspecting the hygiene of stainless steel tableware containers (that is, the migration of heavy metals) can no longer meet the needs of the current inspection of stainless steel products. When the content of heavy metals in products is low, it is difficult to determine them by traditional methods. In this paper, 12 elements in stainless steel were determined by glow discharge mass spectrometer with iron as internal standard. Experiments show that chromium ions are more easily precipitated in martensite than in austenite. Martensitic transformation can be induced in the cold working process of stainless steel meals and kitchen utensils, which leads to the increase of chromium ion precipitation; Chromium, nickel, iron and manganese were detected in most stainless steel kitchenware parts, while cadmium, barium, lead, arsenic, cobalt and molybdenum were hardly detected. Determination of leaching elements in stainless steel kitchenware parts by ICP-MS is quick and simple, and its accuracy, precision and sensitivity can meet the experimental requirements.