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Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

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.

Atomic Emission Spectroscopy: Instrumentation

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.

UV–Vis Spectrometers

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...

Tandem Mass Spectrometry

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. 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...

Atomic Emission Spectroscopy: Overview

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...

Atomic Absorption Spectroscopy: Instrumentation

Atomic Absorption Spectroscopy: Instrumentation

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...

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Related Experiment Video

Updated: Jun 28, 2026

Preparation of Food Samples Using Homogenization and Microwave-Assisted Wet Acid Digestion for Multi-Element Determination with ICP-MS

Preparation of Food Samples Using Homogenization and Microwave-Assisted Wet Acid Digestion for Multi-Element Determination with ICP-MS

Published on: December 22, 2023

Two-dimensional multiple entrance-slit vidicon spectrometer for simultaneous multielement analysis.

M A Busch¹, K W Busch, B B Malloy

¹Department of Chemistry, Baylor University, Waco, TX 76798-7348, U.S.A.

|January 1, 1990

Summary

A novel wavelength dispersion system enables simultaneous multielement analysis by varying entrance slit positions. This innovative approach minimizes spectral interference for accurate elemental determination in complex samples.

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Preparation of Food Samples Using Homogenization and Microwave-Assisted Wet Acid Digestion for Multi-Element Determination with ICP-MS

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Published on: December 1, 2023

Area of Science:

Analytical Chemistry
Spectroscopy
Atomic Emission Spectrometry

Background:

Simultaneous multielement analysis is crucial for efficient sample characterization.
Existing wavelength dispersion systems can suffer from spectral interferences.
Developing advanced optical systems is key to improving analytical accuracy.

Purpose of the Study:

To introduce a new wavelength dispersion system for simultaneous multielement analysis.
To evaluate the performance of the system in one- and two-dimensional modes.
To demonstrate the system's applicability in analyzing biological and geological samples.

Main Methods:

A monochromator with a fixed grating position and variable incident angle via horizontal slit displacement was employed.
A two-dimensional system was created by vertically displacing entrance slits for stacked spectra.
Multi-raster scanning patterns were utilized for spectral acquisition.
Optical and performance characteristics were systematically evaluated.

Main Results:

The system successfully produced composite spectra with minimal interference.
One- and two-dimensional modes demonstrated effective spectral arrangement and scanning.
Accurate determination of Ca, Na, and K in blood serum was achieved.
Exchangeable cations (Ca, Na, Li, K) in clay were successfully quantified.

Conclusions:

The developed wavelength dispersion system offers significant advantages for simultaneous multielement analysis.
The system's design minimizes spectral overlap and interference, enhancing accuracy.
Its versatility allows for application in diverse fields, including clinical and environmental analysis.