Multi functional X-ray absorption spectrometerXAFS/XES is an advanced analytical instrument based on the interaction between X-rays and matter. By finely regulating the energy of X-rays to excite electronic transitions of specific elements in the sample, and measuring the energy and intensity of emitted X-rays, key information such as the valence state, coordination environment, chemical bond type, and local electronic structure of the elements can be obtained.
When X-rays pass through a sample, specific energy rays are absorbed by atoms, triggering electron transitions and emitting X-rays of specific wavelengths. These emitted X-rays carry information about the atomic structure and electronic state of the sample. By analyzing the shape, position, and intensity of absorption spectral lines, the structural characteristics of substances at the atomic scale can be revealed. The XAFS spectrum mainly consists of two parts:
X-ray absorption near edge structure (XANES): covering the range of about 10 eV before the absorption edge to about 50 eV after the absorption edge, mainly derived from the single electron multiple scattering effect of inner shell photoelectrons between surrounding atoms and absorbing atoms, used to analyze the chemical and valence states of elements.
Extended X-ray Absorption Fine Structure (EXAFS): The energy range is from 50 eV to 1000 eV behind the absorption edge, derived from the single electron single scattering effect of inner layer photoelectrons between surrounding atoms and absorbing atoms, used to analyze the coordination structure of the local environment around atoms.
Multi functional X-ray absorption spectrometerFeatures:
Multi mode support: Supports transmission/fluorescence mode absorption and emission spectra, adapting to different sample types (such as solids, liquids, gases) and testing needs.
Near edge quick scan function: Quickly obtain XANES data to improve testing efficiency.
Multi sample automatic collection: Customize a multi sample automatic injection system to reduce manual operation and improve throughput.
Standard sample database and data analysis guidance: provide a standard sample database to simplify the user analysis process; Support in situ scene customization and provide professional data analysis guidance.
In situ testing capability: It can be paired with sample tanks under high temperature, high pressure, low temperature, low pressure, and various atmospheric conditions to achieve in-situ observation of the reaction process.