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相关概念视频

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview01:19

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

676
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
676
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

201
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....
201
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

555
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.
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...
555
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

151
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...
151
Electrospray Ionization (ESI) Mass Spectrometry01:12

Electrospray Ionization (ESI) Mass Spectrometry

753
Higher molecular weight biomolecules are nonvolatile compounds that may decompose before ionizing or vaporizing during mass analysis with conventional electron impact ionization methods. Accordingly, electrospray ionization (ESI) is the favored method for vaporizing and ionizing biomolecules as it circumvents rapid fragmentation and enables the recording of mass signals for the entire biomolecule.
ESI utilizes electrical energy to transfer ions from the liquid phase of the sample into the...
753
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

350
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.
350

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相关实验视频

Updated: Jun 16, 2025

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
09:40

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

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用于弱电离等离子诊断的偏振分离双成像光谱学.

Junhwi Bak, Takuya Koiso, Richard Miles

    Optics express
    |June 14, 2025
    PubMed
    概括

    一种名为分极分离双成像光谱 (PoDIS) 的新技术有效地分离了旋转拉曼和森散射信号. 这允许在等离子诊断中精确,独立地测量中性和电子的热性质.

    科学领域:

    • 血物理学的等离子体物理学
    • 频谱学是一种光谱学.
    • 激光诊断仪器 激光诊断仪器

    背景情况:

    • 激光森散射对于在等离子诊断中测量电子热性质至关重要.
    • 弱电离等离子体由于Mie,Rayleigh和旋转拉曼散射的光谱重叠而存在挑战.
    • 现有的方法很难在复杂的等离子环境中分离森散射信号.

    研究的目的:

    • 引入一种新的成像光谱技术,即极化分离双成像光谱 (PoDIS).
    • 为了证明PoDIS在没有先前假设的情况下分离叠加的散射光谱的能力.
    • 为了能够独立确定中性和电子的热性质.

    主要方法:

    • 极化分离双成像光谱 (PoDIS) 的开发和应用.
    • 使用大气等离子喷射作为该技术的测试台.
    • 分析光谱数据以区分旋转拉曼和森散射信号.

    主要成果:

    • PoDIS成功地将旋转拉曼和森散射光谱从叠加信号中分离出来.
    • 该技术有效地运行,不需要对中性或电子热性质的预先了解.
    • 为旋转拉曼和森散射实现了独立的光谱拟合.

    更多相关视频

    Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface
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    Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
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    相关实验视频

    Last Updated: Jun 16, 2025

    Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
    09:40

    Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

    Published on: February 14, 2014

    14.2K
    Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface
    08:50

    Total Internal Reflection Absorption Spectroscopy TIRAS for the Detection of Solvated Electrons at a Plasma-liquid Interface

    Published on: January 24, 2018

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    Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
    06:46

    Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic

    Published on: August 25, 2016

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    结论:

    • PoDIS提供了一个强大的解决方案,用于解决等离子体诊断中的光谱重叠.
    • 该技术能够准确和独立地描述中性和电子的热性质.
    • PoDIS提高了基于激光的血分析的精度和可靠性.