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| Determination of Heavy Metal Lead in Neodymium-Iron-Boron with ICP-OES |
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Received:November 14, 2018
Revised:March 07, 2019
Accepted:December 04, 2018
Published Online:May 27, 2019
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| DOI：doi:10.3969/j.issn.2095-1035.2019.02.003 |
| KeyWord:ICP-OES；neodymium-iron-boron； heavy metal；lead |
| Author | Institution |
| zhuxiaolong |
Ningbo Institute of Measurement and Testing |
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| Abstract: |
| The sample of neodymium-iron-boron magnet was digested by nitric acid. An analysis method was established for determination of heavy metal lead in neodymium-iron-boron magnet with inductively coupled plasma optical emission spectrometer(ICP-OES). The working conditions of the instrument and analysis wavelength were discussed. Results showed that the linear correlation coefficient was 0.99993, the detection limit was 0.009 μg/mL, the recovery of standard addition was 104 %, the accuracy and precision were all less than 3 %. The detection limit of the method was low and met the actual analysis requirements. This method could quickly, conveniently and accurately detect the heavy metal lead in neodymium-iron-boron magnet. |
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