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| Determination of 16 Rare Earth Elements in Laver by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) with Microwave Digestion |
| Received:November 02, 2016 Revised:December 16, 2016 |
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| DOI：doi:10.3969/j.issn.2095-1035.2017.03.006 |
| KeyWord:laver; rare earth elements; microwave digestion; ICP-MS; online internal standard solution |
| Author | Institution |
| CAI Jiangfan |
桂林市疾病预防控制中心，广西 桂林 |
| WANG Zhihong |
桂林市疾病预防控制中心，广西 桂林 |
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| Abstract: |
| A method was established for the determination of 16 rare earth elements in laver, which were sampled from the agricultural products market and supermarket. The elements were determined by inductively coupled plasma mass spectrometry (ICP-MS) with microwave digestion. Through the introduction of online internal standard solution，the detection signal showed a good linear relation with the content of the rare earth elements in the concentration from 0 to 2.00 μg/L. The correlation coefficient R2 was >0.9999 and the relative standard deviation (RSD) was less than 3.3%. The Analytical results of the rare earth elements in the national standard material of GBW10052(GSB-30) and GBW10045 by this method were basically consistent with the standard values. |
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