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Related Concept Videos

Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
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The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
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For AAS measurements, samples must be introduced as clear solutions, often requiring extensive preliminary treatment to dissolve materials like soils, animal tissues, and minerals. Common methods for sample preparation include treatment with hot mineral acids, wet ashing, combustion in closed containers, high-temperature ashing, or fusion with reagents.
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Ion-exchanger phase absorptiometry for trace analysis.

K Yoshimura1, H Waki

  • 1Department of Chemistry, Faculty of Science, Kyushu University 33, Hakozaki, Higashiku, Fukuoka 812, Japan.

Talanta
|May 1, 1985
PubMed
Summary
This summary is machine-generated.

Ion-exchanger phase absorptiometry directly measures light absorption to determine trace elements in natural waters without preconcentration. This review covers developed systems and the theoretical basis of solid-phase absorptiometry.

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Area of Science:

  • Analytical Chemistry
  • Environmental Science

Background:

  • Ion-exchanger phase absorptiometry utilizes light absorption by ion-exchange resins to quantify sample components.
  • This technique allows for direct determination of trace elements in natural water samples.
  • Preconcentration steps are not required, simplifying analysis.

Purpose of the Study:

  • To review all ion-exchanger phase absorptiometry systems developed to date.
  • To describe the theoretical background of solid-phase absorptiometry.

Main Methods:

  • Direct measurement of light absorption by the ion-exchange resin phase.
  • Analysis of trace elements in natural water samples.

Main Results:

  • Demonstration of direct trace element determination without preconcentration.
  • Comprehensive review of existing systems and theoretical principles.

Conclusions:

  • Ion-exchanger phase absorptiometry is a viable method for direct trace element analysis in natural waters.
  • Understanding the theoretical basis is crucial for further development and application.