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| Determination of Lead and Arsenic in Edible Vegetable oil by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) |
| Received:September 21, 2018 Revised:January 11, 2019 |
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| DOI： |
| KeyWord:Microwave digestion；ICP-MS； Vegetable oil； Lead； Arsenic |
| Author | Institution |
| Xu Pingping |
山东天元盈康检测评价技术有限公司 |
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| Abstract: |
| The improved microwave digestion-inductively coupled plasma mass spectrometry (ICP-MS) method was used to quantitatively detect Lead and Arsenic in vegetable oil, which made up for the insufficiency of microwave digestion. The Lead and Arsenic concentrations have a good linear relationship (r≥0.999) in the range of 0μg/L～50μg/L,the relative standard deviation (RSD) is 1.2%～4.9%,and the recoveries are 81.0%～108.8%. The limits of detection are 1.11μg/Kg and 0.90μg/Kg, respectively, which can meet the testing requirements of existing standards. |
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