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Related Concept Videos

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.
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview01:02

Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview

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 electronic transitions. As a result...
UV–Vis Spectrometers01:14

UV–Vis Spectrometers

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. Samples for...
Raman Spectroscopy Instrumentation: Overview01:26

Raman Spectroscopy Instrumentation: Overview

A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
IR Spectrometers01:25

IR Spectrometers

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...
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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Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo
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A wide spectral range ultra-rapid scan spectrometer.

C H Church1, L Gampel

  • 1Westinghouse Research Laboratories,Pittsburgh, Pennsylvania, USA.

Applied Optics
|January 6, 2010
PubMed
Summary

A novel grating spectrometer enables rapid spectral scanning over a broad range with high resolution. This instrument is designed for advanced spectroscopic analysis, offering significant improvements in data acquisition speed.

Area of Science:

  • Spectroscopy
  • Optical Instrumentation

Background:

  • Traditional spectrometers often face limitations in scanning speed and spectral range.
  • Rapid data acquisition is crucial for dynamic spectroscopic studies.

Purpose of the Study:

  • To design and construct a grating spectrometer with enhanced scanning capabilities.
  • To demonstrate the instrument's performance in capturing spectral data quickly.

Main Methods:

  • Development of a grating spectrometer system.
  • Implementation of high-speed scanning mechanisms.
  • Spectroscopic data acquisition and analysis.

Main Results:

  • Achieved extremely rapid scanning rates exceeding 200 Angstroms per microsecond.

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  • Covered a wide spectral range from 4000 to 11,000 Angstroms in a single order.
  • Theoretical resolving power of approximately 6000 demonstrated.

    • Conclusions:

    • The designed grating spectrometer offers exceptional speed and broad spectral coverage.
    • The instrument's capabilities are suitable for applications requiring fast spectroscopic measurements.