| A method based on inductively coupled plasma optic emission spectrometry (ICP-OES) for the determination of the migration of six harmful elements (As, Cd, Cr, Ni, Pb and Sb) in the silver tank cup was established. The results showed that the elements to be tested had a good linear relationship in the concentration range of the standard curve, the recovery rate was 86.1%~103.3%, and the relative standard deviate (RSD) was less than 5%. Under the condition of acid migration, a certain amount of antimony migration can be detected in some samples, and the measured antimony migration was 0.00868~0.0304 mg/dm2. The results of this study can provide technical support for the safety evaluation of silver tableware. |
