| 摘要: |
| 利用电感耦合等离子体光谱仪(ICP-AES)对海洋表层沉积物及上覆海水、海洋沉积物国家标准物质、陆地的水系沉积物及土壤国家标准物质进行检测以对比海洋沉积物含水率对部分碱金属及碱土金属元素分析结果所造成的影响。结果显示海洋沉积物含水率对钠离子影响最大, 往往有超过50%的钠离子来自其中所含海水的贡献, 而海洋沉积物含水率对钾、钙、镁的影响则较为微弱。因此, 研究海洋沉积物化学组分时有必要考虑其所含海水对钠含量的贡献, 以期达到不同海洋沉积物化学组分的可比性。 |
| 关键词: 海洋沉积物 含水率 碱金属及碱土金属元素 影响因素 |
| DOI：10.11759/hykx20140108001 |
| 分类号: |
| 基金项目:国土资源公益性行业科研专项(201211062) |
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| Effect of water content on certain alkali and alkali-earth elements in marine sediments |
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| Abstract: |
| Superficial marine sediments and the overlying seawater were tested by inductively coupled plasma atomic emission spectroscopy to determine the influence of marine sediments water content on alkali and alkali-earth elements. We used national standard reference materials of marine and stream sediments and land soils. The test results showed that the majority of sodium in marine sediments were attributed to the water content, while the water content had little influence on the levels of potassium, calcium, and magnesium in marine sediments. It is necessary to further explore sodium concentrations in the seawater of marine sediments for comparisons among different ocean provinces. |
| Key words: marine sediment water content alkali and alkali-earth elements influencing factor |
