| 海洋沉积物中钾、钠、钙、镁的连续测定 |
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| 引用本文： | 李凤业.海洋沉积物中钾、钠、钙、镁的连续测定[J].海洋科学,1985,9(1):21-23. |
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| 作者姓名： | 李凤业 |
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| 作者单位： | 中国科学院海洋研究所 |
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| 摘 要： | 钾、钠、钙、镁是海洋沉积物中的常量元素,对海洋沉积物地球化学的研究有重要意义。以往对于碱金属钾、钠及碱土金属钙、镁元素的分析都是分别称样洧化和测定的,不够方便。本文介绍对于海洋沉积物中钾、钠、钙、镁连续测定的火焰原子吸收分光光度法。
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CONTINUOUS DETERMINATION OF POTASSIUM, SODIUM, CALCIUM, MAGNESIUM IN MARINE SEDIMENTS (AAS) |
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| Abstract: | A rapid atomic absorption spectrophotometric (AAS) method for the continuous determination of K, Na, Ca, Mg in marine sediments is described. After hydrochloric acid, hydrofluric acid and perchloric acid digestion, strontium chloride is added as a releasing agent and all elements are analysed. AAS accuracy and precision for the elements studied is generally better. The proposed AAS method is essentially a time-saving one and it has been applied in the study of sediment geochemistry of East China Sea. |
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