Elemental analysis is a process in analytical chemistry in which a sample of material such as water, minerals and bodily fluid is analyzed to ascertain its elemental composition. Elemental analysis can be qualitative, determining which elements are present or quantitative, determining the levels of elements.
This article will outline some of the key forms of elemental analysis and what they are used for.
Scanning Electron Microscopy
Elemental analysis can be used to provide surface elemental composition information for scanning electron microscopy (SEM) for areas as low as nanometers in diameter. An electron beam scans the sample and monitors reflected electrons from the sample surface.
The impact of this electron beam creates X-rays which are representative of the elements present in the sample. This type of elemental analysis can also create elemental maps of the surface of a sample which can show which elements are present in small localized impurities or broad phases.
Neutron Activation Analysis
Neutron activation analysis is a highly sensitive and precise method for attaining needs of industries for trace elemental analysis. This sampling of elements is discrete, focusing specifically on the atomic nuclei of a sample. The elements form radioactive isotopes as the sample is bombarded with neutrons. This results in radioactive emissions and decay paths being determined which leads to the establishment of exact elemental concentrations.
电感耦合等离子体质谱（ICP-MS）
ICP-MS是一种元素分析技术，可以检测每升毫克至纳米线的多个元素周期表。该技术将高敏感的质谱检测器（百分比水平与电感耦合等离子体源相结合（万亿（PPT）范围）。它是在一系列行业中，如地球化学分析，冶金，环境监测，药物分析以及临床研究。
Determining Carbon, Hydrogen, Nitrogen, Sulfur and Oxygen Content
元素分析可用于通过燃烧分析确定许多气体的水平。该方法采用通过“闪蒸”，将每种有机和无机物质转化为燃烧产物的速溶和完全氧化，并产生燃烧气体确定浓度信息。
元素分析的方法useful for ascertaining the elemental composition and purity of unknown compounds as they generally establish the weight percentage of the element in a compound. This is particularly useful for chemical characterization in materials science, natural products and pharmaceutical products.
X-ray Photoelectron Spectroscopy for Chemical Analysis
XPS is a method of elemental analysis which is used for the surface of a sample employing a monochromatic X-ray beam. XPS uses a monochromatic X-ray beam to cause the emission of core electrons and the kinetic energy which is emitted helps to identify the elements present. This form of elemental analysis can be used to characterize particular functional groups related to a specific element.
X-ray Fluorescence
该元素分析技术采用来自X射线管的光子，这导致内壳电子留下测试样品的激励体积。然后制造荧光光子以平衡外壳和内壳之间的能量差，并且荧光X射线是它们源自的原子的特征。这种元素分析方法在质量控制的应用中运用良好。
Elemental Analysis from Jordi Labs
At Jordi Labs, we can offer elemental analysis for a broad spectrum of inorganic components such as Uranium and Hydrogen. We are able to analyze even ultra-trace elements and both surface and bulk elemental composition.
If you would like to find out more about ourelemental analysis服务，contact ustoday.
