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UV–Vis Spectrometers01:14

UV–Vis Spectrometers

1.5K
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
1.5K
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

568
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.
568
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

1.2K
Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and signal-to-noise ratio for the analyte. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.
Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called collision-induced...
1.2K
IR Spectrometers01:25

IR Spectrometers

1.3K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
1.3K
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview01:02

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

2.9K
Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material,  molecules absorb light depending on the energy required for...
2.9K
Atomic Absorption Spectroscopy: Instrumentation01:22

Atomic Absorption Spectroscopy: Instrumentation

854
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...
854

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ウルトラミニチュア化スペクトロメーター

Jorge Quereda1, Andres Castellanos-Gomez2

  • 1Grupo Interdisciplinar de Sistemas Complejos: Modelización Y Simulación, Departamento de Física de Materiales, Universidad Complutense de Madrid, Madrid, Spain.

Science (New York, N.Y.)
|October 20, 2022
PubMed
まとめ
この要約は機械生成です。

ミニチュア化されたスペクトロメーターは 日常の消費電子機器に 感知能力を向上させています この技術的進歩は,伝統的な実験室環境を超えて,スペクトロスコピーの潜在的応用を広げています.

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Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation
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Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

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Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
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Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

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Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation
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Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
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科学分野:

  • 光学とフォトニクス
  • スペクトロスコーピー
  • ミニチュライゼーション技術

背景:

  • 光スペクトロメーターは,光の性質を測定するための重要な分析機器です.
  • 現在のスペクトロメーターはしばしば大きくなっており,携帯機器での広範な採用を制限しています.
  • 光学工学の進歩は より小さく より効率的なスペクトロメーターの開発を推進しています

研究 の 目的:

  • 消費者のアプリケーションのためのスペクトロメーターのスケールダウンの可能性を調査する.
  • スペクトロメーターの小型化における主要な課題と潜在的な解決策を特定する.
  • 電子機器市場における小型化スペクトロメーターの影響を評価する.

主な方法:

  • 光学コンポーネントの既存の小型化技術のレビュー
  • コンパクトスペクトロメーターのための新しい材料と製造プロセスの分析.
  • 縮小型のスペクトロメーター設計のシミュレーションとモデリング.

主要な成果:

  • 大幅に縮小したスペクトロメーター設計の実証
  • ミニチュア化スペクトロメーターの費用対効果の高い製造方法の特定
  • より大きな従来のスペクトロメーターと比較できる性能メトリックの検証.

結論:

  • スペクトロメーターの小型化は実現可能で,消費者のデバイスへの統合の道を開きます.
  • ミニチュア化されたスペクトロメーターは,移動中の化学分析と材料識別のための新しい可能性を提供します.
  • このイノベーションは,先進的なスペクトロスコピーの機能を組み込むことで, 消費電子機器に革命をもたらす準備ができています.