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原子吸收法测定海洋沉积物碳酸盐组分中的Ca,Mg,Na,Fe,Mn
韩桂荣1, 李风业1
中国科学院海洋研究所
摘要:
本文介绍了以原子吸收法测定海洋沉积物碳酸盐组分中Ca,Mg,Na,Fe,Mn的方法。经室温干燥的样品以103mol/m3HCl消化后,加入KCl至K+含量达0.5％作为释放剂,进行测定。方法省时,结果可靠,回收率为88—105％,相对标准偏差<3％。
关键词:  沉积物  原子吸收分光光度法  碳酸盐组份
DOI：
分类号:
基金项目:
THE DETERMINATION OF ELEMENTS Ca, Mg, Na, Fe, Mn IN THE CARBONATE FRACTION OF MARINE SEDIMENTS BY ATOMIC ABSORPTION SPECTROPHOTOMETRY
Abstract:
A method is decribed for the rapid determination of elements Ca, Mg, Na, Fe, Mn in the carbonate fraction of marine sediments by atomic absorption spectrophotometry. The sample is dried, ground and weighted, then 103 mol/m3 hydrochloric acid is added at room temperature for digestion. After the solution is filtered, potassium chloride is added to the filtrate to 0.5% of K+ as a releasing agent. All elements are analysed with flame atomic absorption spectrophotometer model EFD-Y2(made in Beijing, China). The recovery rate and the relative standard deviation were tested to be within 87.6-105.1% and <3% respectively. The method is time-saving, accurate an reliable.
Key words:  Sediments, Atomic absorption
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