用等离子质谱(ICP - MS)分析一些特殊样品的时候，前处理方法成为分析样品成功与否的关键，对于高基质含量的样品测量其微量元素含量更是如此。
Using Inductively Compled Plasma Mass Spectrometry (ICP-MS), the pretreatment method of some special samples is a key, especially to analyzing trace elements of samples contained high background.
目的测定东风菜根微量元素的含量，探讨其药用基础。
Objective With measuring the levels of the Doellingeria Scaber Thunb roots microelements, to explore its pharmaceutical ground.
采用火焰原子吸收法测定了60例5～8月胎尸股骨中的铜、铁、锌、锰、锂五种微量元素的含量。其结果表明；
The contents of copper, ferrum. zinc, manganese and lithium were determined in the femoral bones of 60 normal dead futuses of 5 - 8 months by means of flame atomic absorption.
结果：XRF可对其宏量和微量元素的种类和含量进行测定，PXRD可对含有晶态物质的伪品阿胶进行鉴别。
Results: XRF can determine the kinds and contents of the macro and the trace elements, PXRD will discriminate the false Ejiao that containing the crystalline material.
无论是微量元素还是氧化物，其含量大多数都由潮上带—潮间带—潮下带呈明显增大的趋势。
Contents of both trace elements and oxide significantly increase from supralittoral zone to intertidal zone and to subtidal zone.
无论是微量元素还是氧化物，其含量大多数都由潮上带—潮间带—潮下带呈明显增大的趋势。
Contents of both trace elements and oxide significantly increase from supralittoral zone to intertidal zone and to subtidal zone.
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