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関連する概念動画

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

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

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 passed on to...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

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...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

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).
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.
Composition of Blood Plasma01:24

Composition of Blood Plasma

Blood plasma is a fluid that contains approximately 92% water and 8% solutes. The solutes include various types of proteins, which constitute about 7% of the total solutes in the plasma. The high-molecular-weight proteins—albumins, globulins, and fibrinogen—are essential to plasma function. Albumins, making up about 60% of the plasma proteins, maintain the osmotic balance within blood vessels by preventing excessive water leakage. Additionally, albumins serve as carrier proteins, binding to...
Momentum And Radiation Pressure01:20

Momentum And Radiation Pressure

An object absorbing an electromagnetic wave would experience a force in the direction of propagation of the wave. This force occurs because electromagnetic waves contain and transport momentum. The force accounts for the wave's radiation pressure exerted on the object. Maxwell's prediction was confirmed in 1903 by Nichols and Hull by precisely measuring radiation pressures with a torsion balance. The measuring instrument had mirrors suspended from a fiber kept inside a glass container. Nichols...
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

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.

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関連する実験動画

Updated: Jul 12, 2026

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
07:17

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

Published on: August 1, 2017

コメット・ジャコビニ・ジンナー: プラズマ説明

S J Bame, R C Anderson, J R Asbridge

    Science (New York, N.Y.)
    |April 18, 1986
    PubMed
    まとめ

    国際彗星探査機 (ICE) は,強烈な太陽風の相互作用を彗星ジャコビニ・ジンナーと観測した. 弓の衝撃は検出されなかったが,移行領域,シート,およびプラズマの尾が特定され,複雑な彗星のプラズマダイナミクスを明らかにした.

    科学分野:

    • * 宇宙物理学 宇宙物理学
    • *彗星科学について
    • * プラズマ物理学

    背景:

    • *太陽風と彗星の相互作用を理解することは,惑星科学にとって極めて重要です.
    • * Giacobini-Zinner彗星は,これらの現象を研究するためのユニークな自然実験室を提供しました.

    研究 の 目的:

    • * ICE宇宙船がジャコビニ・ジンナー彗星と遭遇した時のプラズマ電子データを分析する.
    • * 彗星と太陽風の相互作用の構造とダイナミクスを調査する.
    • * 上流現象を特定し,彗星のプラズマ環境を特徴付ける.

    主な方法:

    • * ICE宇宙船のロスアラモスプラズマ電子実験を用いたインシトゥ測定.
    • * 電子の熱流と密度変動の観測.
    • * 相互作用領域におけるプラズマ加熱,圧縮,減速の分析.

    主要な成果:

    • * 彗星ジャコビニ・ジンナーとの強い太陽風の相互作用が観測され,電子の加熱と密度の変動が観察されました.
    • *従来の弓の衝撃は検出されませんでしたが,代わりに,移行領域とシートが特定されました.
    • * 寒い中間昏睡と高密度プラズマの尾が観測され,地球の磁気尾に似ています.

    さらに関連する動画

    Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
    11:20

    Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses

    Published on: July 2, 2012

    How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters
    08:42

    How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters

    Published on: April 16, 2015

    関連する実験動画

    Last Updated: Jul 12, 2026

    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
    07:17

    Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

    Published on: August 1, 2017

    Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
    11:20

    Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses

    Published on: July 2, 2012

    How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters
    08:42

    How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters

    Published on: April 16, 2015

    結論:

    • * 彗星ジャコビニ・ジンナーとの太陽風の相互作用は,明確な弓の衝撃なしに複雑なプラズマ環境を作り出します.
    • * 彗星のイオン吸収と惑星間磁場ドレーピングは,観測されたプラズマ構造に寄与している可能性が高い.
    • * 発見は,彗星環境におけるプラズマ尾形成と磁気尾のような構成についての洞察を提供します.