摘 要
群星庭院电感耦合等离子体原子发射光谱（Inductively Coupled Plasma Atomic Emission Spectrometry，ICP-AES）法是以电感耦合等离子体炬为激发光源来研究物质化学成分的分析方法。该方法具有样品处理简单、基体效应小、物理和化学干扰等优点，是固体样品中多种元素同时分析的一种重要工具。本论文使用ICP-AES主要开展了如下研究工作：
首先，建立了碱熔-ICP-AES法测定大气颗粒物中Si、Ca、Al、Mg、Fe、Mg、Ti、Sr、Ba、Zr 等无
机元素的分析方法。该方法解决了大气颗粒物滤膜样品中 Si 易产生的溶解不完全等问题，提高了 Ti、Sr、Ba、Zr 等主次量元素测定的精密度和准确度。方法所需设备简单，分析成本低，准确度高，适合批量样品的测定。
会声会色
接着，建立了碱熔-ICP-AES法测定分子筛中Si、Al的定量分析方法。方法对样品消解时使用石墨坩埚进行碱熔熔样，并对样品的熔融试剂进行了选择，方法流程短，可快速对样品进行检测。
然后，建立了新型分步酸溶-ICP-AES法测定NiB非晶态合金催化剂中Ni、B、Pd 元素的分析方法，方法对样品分别进行了酸溶和碱熔融制备，并对样品分析结果进行了分析，最终选择分步酸溶对样品进行消解。
最后，建立了一种酸溶-ICP-AES法测定土壤中K、Na、Ca、Mg、Fe、Be、Li、La、Sc、Ce、Co、Ni、V、Cr等14项主次元素的分析方法。方法简便，准确度和回收率较高，适合生产应用。
通过以上研究，建立了利用ICP-AES进行固体样品中元素定量分析的方法，具有很好的实用价值，为当前我国生态环境地球化学调查、化学化工等领域提供良好的测试技术支撑。
关键词 ICP-AES 大气颗粒物沸石NiB非晶态合金催化剂土壤常微量元素测定方法
Abstract
Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) is a uful analytical method to study the chemical compositions of materials, by using an inductively coupled plasma torch as its excitation light source. This method is an important tool for the measurement of multiple elements in samples simultaneously, with the advantages of simple sample preparation, small matrix effect, less physical and chemical interference, low detection limit, good accuracy and high precision. ICP-AES is applied and investigated in this paper in the following respects.
Firstly, Alkali Fusion-ICP-AES was established to measure the inorganic elements, such as Si, Ca, Al, Mg, Fe, Mg, Ti, Sr, Ba, Zr, in atmospheric particulate matters. This method resolved the problem of incompletely dissolution of Si in atmospheric particulate filter membrane samples, which improved the accuracy and precision of determination of primary and condary elements, such as Ti, Sr, Ba, Zr. The apparatus in this method is simple with high accuracy and precision, and the analytical cost is low, suitable for batch samples.
Then, a quantitative analysis method was established to determine the Si and Al elements in molecular sieves using Alkali Fusion-ICP-AES. Graphite crucible was ud to melt sample via alkali fusion, and the lection of molten reagents was discusd. This method was short and efficient.
Afterwards, a novel Acid-Fusion-ICP-AES was established to measure Ni, B and Pd elements in NiB amorphous alloy catalyst. The samples were prepared by acid fusion and alkali fusion, respectively. Bad on the test results, the properties of two samples were compared and analyzed, and acid solution was finally chon for sample digestion.
Finally, Acid-Fusion-ICP-AES was built to determine the primary and condary elements, such as K, Na, Ca, Mg, Fe, Be, Sc, Ni, V and Cr, in the soil. The detection limit of Ca, Mg, Na, K elements is 0.01%, and 0.01~1.5 ug/g of other elements.
Thus, a ries of applicable analytic methods were established bad on ICP-AES and can support ecological environment geochemical survey and chemical engineering.
Keywords ICP-AES Atmospheric particulate matters Zeolite
NiB amorphous alloy catalyst Soil Often trace elements
Determination method
目录
酸菜鱼头汤第1章文献综述 (1)
1.1 前言 (1)
1.2 ICP-AES分析技术的发展 (1)
1.3 ICP-AES仪器结构与组成 (2)
1.4 ICP-AES分析方法的优缺点 (2)
1.5 ICP-AES分析样品制备技术 (3)
1.6 ICP-AES在固体样品中的应用 (4)
趁早歌词
1.7 本论文的研究内容和意义 (4)
第2章碱熔-ICP-AES法测定大气颗粒物中的无机元素 (5)
2.1 前言 (5)
2.2 实验部分 (6)
2.2.1 实验试剂 (6)
2.2.2 实验仪器 (6)
2.2.3 仪器工作条件 (6)
2.2.4 标准物质和样品 (7)
2.2.5 样品前处理与分析 (7)
2.3 结果与讨论 (7)
2.3.1 碱熔法与酸溶高压密闭消解法的对比试验 (7)
2.3.2 熔融试剂的选择 (8)香酥鸭腿>wps打印预览
2.3.3 坩埚材质的选择 (9)
2.3.4 灰化温度及灰化时间与元素损失 (9)
2.3.5 酸度试验 (10)
2.3.6 干扰消除 (10)
2.3.7 方法准确度和精密度 (10)定位修改
2.3.8 方法检出限 (11)
立春节气图片2.4 本章小结 (12)
