Abstract：The harmful metal elements in stainless steel tableware products would be dissolved out when contacting with foods containing rich electrolytes such as salt, sauce and vinegar. As the content reached some extent, the human health would be jeopardized. The sample was treated in boiling 4%(V/V) acetic acid for 0.5 h followed by placing at room temperature for 24 h. Mn 257.610 nm and Cr 267.716 nm were selected as analytical lines. The rapid determination of manganese and chromium in leaching solution of stainless steel tableware by inductively coupled plasma atomic emission spectrometry (ICP-AES) was established. The optimal working conditions of instrument were obtained by experiments. The interference of coexisting elements was discussed. The mass concentration of manganese (0.10-500 μg/mL) and chromium (0.10-500 μg/mL) showed good linearity to the emission intensity. The linear correlation coefficient of calibration curve was 0.999 9 and 0.999 7 for manganese and chromium, respectively. The detection limit for manganese and chromium was 0.010 μg/mL and 0.020 μg/mL, respectively. The amount of manganese and chromium in sample leaching solution was determined according to the experimental method. The relative standard deviations(RSD, n=7) were between 1.2% and 1.5%. The determination results were consistent with those obtained by spectrophotometry and atomic absorption spectrometry. Moreover, it was found that the amount of manganese mostly increased when the stainless steel tableware sample leaching solution was corroded. For the sample leaching solution with higher amount of chromium, the dissolution amount of Cr6+was also higher.
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