Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

207
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
207
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

261
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).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
261
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

540
The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers.  Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
540
Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

589
Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
589
Atomic Spectroscopy: Absorption, Emission, and Fluorescence01:23

Atomic Spectroscopy: Absorption, Emission, and Fluorescence

1.1K
Atomic spectroscopy is a vital tool in elemental analysis, both qualitatively and quantitatively. It can be broadly divided into optical spectroscopy, mass spectroscopy, and X-ray spectroscopy methods. The optical spectroscopic methods are atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), and atomic fluorescence spectroscopy (AFS). The first step in all three methods is atomization, where the solid, liquid, or solution-phase samples are converted into gas-phase atoms and...
1.1K
Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

805
An atomic absorption spectrophotometer (AAS) comprises several components: a radiation source, an atomizer, a monochromator, and a detector. The radiation source can be a hollow-cathode lamp (HCL) or an electrodeless-discharge lamp (EDL), both of which provide a narrow emission line of the required wavelength. However, some instruments use continuum sources and high-resolution monochromators to achieve a narrow range of radiation.
The atomizer used in AAS can be either a flame atomizer or an...
805

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Probing the structure of complex hydrocarbon molecules with X-ray-induced Coulomb explosion imaging.

Physical chemistry chemical physics : PCCP·2026
Same author

Photoinduced Enhancement of Chemical Shift Sensitivity to Local Vibrations.

Journal of the American Chemical Society·2026
Same author

Proton Sharing in Polycarboxylic Acids in Aqueous Solution.

JACS Au·2026
Same author

Steroid Fingerprinting with Cryogenic Gas-Phase Infrared Spectroscopy.

ACS measurement science au·2026
Same author

Liquid-Microjet Photoelectron Spectroscopy of the Photoactive Yellow Protein Chromophore in Aqueous Solution.

The journal of physical chemistry. A·2026
Same author

Cryogenic Infrared Spectroscopy Unmasks Gas-Phase Charge Migration in Mucin-Type O-Glycans.

Small (Weinheim an der Bergstrasse, Germany)·2026

相关实验视频

Updated: Jul 26, 2025

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
06:53

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Published on: July 27, 2018

8.7K

来自液体平射器的光电子光谱学.

Dominik Stemer1, Tillmann Buttersack1, Henrik Haak1

  • 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.

The Journal of chemical physics
|June 20, 2023
PubMed
概括

我们开发了一种使用两个相撞的液体喷射来进行先进的光电子光谱的新型平射方法. 这种技术使独特的液相实验和对不同溶液的表面敏感分析成为可能.

更多相关视频

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

10.0K
Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation
09:53

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Published on: October 30, 2012

13.0K

相关实验视频

Last Updated: Jul 26, 2025

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
06:53

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Published on: July 27, 2018

8.7K
Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
09:00

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

10.0K
Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation
09:53

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Published on: October 30, 2012

13.0K

科学领域:

  • 物理化学 物理化学
  • 表面科学是一门学科.
  • 频谱学是一种光谱学.

背景情况:

  • 液体喷射光电子光谱学提供了液体接口的表面敏感分析.
  • 传统的单形液体喷射器限制了实验配置和检测能力.

研究的目的:

  • 为了展示液相光电子光谱学的新型平射技术.
  • 探索平坦喷气机在创建独特的液体接口和应用潜在梯度方面的能力.

主要方法:

  • 通过撞击不同水溶液的两个微米大小的圆柱形喷流,形成一个平流.
  • 使用光电子光谱技术对共流液体喷射板的面部敏感检测.
  • 将不同的偏差潜力应用于撞击喷气,以创建潜在的梯度.

主要成果:

  • 成功生成并分析了由化溶液和水组成的平射器.
  • 证明了在平射接口上创建潜在梯度的能力.
  • 介绍了来自三明治型平流喷气 (用烯封装的水) 的第一个光辐射光谱.

结论:

  • 平坦喷气提供了一个灵活的平台,用于先进的液相实验,而单喷气实验是不可行的.
  • 该技术允许独特的表面敏感检测和控制接口属性.
  • 这种方法为使用光电子光谱学研究复杂的液体接口开辟了新的途径.