ICP-MS法测定罗布泊湖盆沉积物中微量元素含量

Detection of Trace Elements in the Sediment of Lop Nur Samples by ICP-MS

采用电感耦合等离子体质谱(ICP-MS)法系统测定罗布泊地区不同经纬度土壤样品中28种微量元素的含量。结果发现各金属元素含量在土壤剖面上表现出由表层向底层逐渐增加的趋势;生命体必需元素P的含量在各个样品中含量非常低,其中表层含量最低,其他四个层位含量相当。研究结果将有助于了解罗布泊地区干涸后沉积生态系统演变过程。

Twenty eight trace elements in the sediment of Lop Nur in different latitude and longitude were tested by ICP-MS.The results showed that the metal contents in the soil profile followed a growing trend from the surface to the bottom.And the essential element P for living body in each sample was very low,and was the lowest on the surface,while was matched in the other four layers.The results will help to understand the ecosystem evolution of Lop Nur drying up after the sediment deposition.