| 微波消解-电感耦合等离子体发射光谱法测定 炭黑中重金属元素含量 |
| Determination of Heavy Metal Element Contents in Carbon Black by Microwave Digestion-IPS-OES |
| 投稿时间：2021-02-04 修订日期：2021-02-04 |
| DOI：10.12136/j.issn.1000-890X.2022.02.0144 |
| 中文关键词: 微波消解-电感耦合等离子体发射光谱 炭黑 重金属元素 含量 |
| 英文关键词: microwave digestion-ICP-OES carbon black heavy metal element content |
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| 中文摘要: |
| 采用微波消解-电感耦合等离子体发射光谱法同时测定炭黑中重金属元素（铅、镉、铬、汞）含量，对消解溶剂、
升温程序、控制温度及恒温时间等消解条件进行优化，并选择各元素分析谱线。试验结果表明，各元素检出限为铅 2. 0
mg·kg-1、镉 2. 0 mg·kg-1、铬 3. 1 mg·kg-1、汞 1. 6 mg·kg-1，各元素加标回收率为89%～103%，各元素含量测试结果的相对标准偏差为1. 03%～3. 78%。该方法操作简单、结果准确，满足相关法律法规的要求。 |
| 英文摘要: |
| Abstract：The contents of heavy metal elements（Pb，Cd，Cr and Hg） in carbon black were determined
by microwave digestion-inductively coupled plasma optical emission spectrometry（microwave digestion-
ICP-OES）. By optimizing the digestion solvent，temperature program，temperature control method and
temperature holding time，and selecting the analytical spectral line of each element，a method for the
determination of the contents of Pb，Cd，Cr and Hg in carbon black by microwave digestion-ICP-OES was
established. The results showed that，the detection limit of each element was 2. 0 mg·kg-1 for Pb and Cd，
3. 1 mg·kg-1 for Cr and 1. 6 mg·kg-1 for Hg. The standard recovery rate of each element was in the range
of 89%～103%. The relative standard deviation of the test results of each element content was in the range of
1. 03%～3. 78%. This method was simple and accurate，and met the requirements of the relevant regulations. |
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