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Updated: Jul 18, 2025

Measurement of Total Calcium in Neurons by Electron Probe X-ray Microanalysis
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深度学习用于核心损失电子能量损失光谱中的自动化材料表征

Arno Annys1, Daen Jannis1,2, Johan Verbeeck3,4

  • 1EMAT, University of Antwerp, 2020, Antwerp, Belgium.

Scientific reports
|August 22, 2023
PubMed
概括

本研究引入了电子能量损失光谱 (EELS) 的大量合成数据集,以自动化元素识别. 这使得在频谱成像中实现完全自动化的元素映射,克服了EELS分析的关键限制.

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Atomic absorption spectroscopy (AAS) is a technique used to analyze elements by measuring electromagnetic radiation (EMR) absorbed by atoms, which causes them to transition to a higher-energy orbit. The most crucial step in AAS is atomization, where the analyte is converted into gas-phase atoms, typically through a flame or furnace. Some of these atoms become thermally excited in the flame, while most remain in the ground state.
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Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
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Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
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