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Related Experiment Video

Updated: Jun 28, 2026

Analysis of AtHIRD11 Intrinsic Disorder and Binding Towards Metal Ions by Capillary Gel Electrophoresis and Affinity Capillary Electrophoresis

Analysis of AtHIRD11 Intrinsic Disorder and Binding Towards Metal Ions by Capillary Gel Electrophoresis and Affinity Capillary Electrophoresis

Published on: August 22, 2018

A stable d.c. capillary arc plasma for solution analysis.

H Denton¹, B L Sharp, T S West

¹Chemistry Department, Imperial College, London SW7, England.

|April 1, 1975

Summary

This summary is machine-generated.

This study details the analytical performance of a direct current (d.c.) capillary arc plasma for detecting elements like cadmium and lead. It highlights challenges with sample introduction and signal observation in the plasma system.

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Published on: January 16, 2017

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Analysis of AtHIRD11 Intrinsic Disorder and Binding Towards Metal Ions by Capillary Gel Electrophoresis and Affinity Capillary Electrophoresis

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Published on: August 22, 2018

Capillary Electrophoresis Separation of Monoclonal Antibody Isoforms Using a Neutral Capillary

Capillary Electrophoresis Separation of Monoclonal Antibody Isoforms Using a Neutral Capillary

Published on: January 16, 2017

Area of Science:

Analytical Chemistry
Atomic Spectroscopy
Plasma Physics

Background:

Direct current (d.c.) capillary arc plasma offers a unique environment for elemental analysis.
Efficient sample introduction and atomization are critical for accurate plasma-based measurements.
Understanding plasma-sample interactions is key to optimizing analytical methods.

Purpose of the Study:

To evaluate the analytical capabilities of a d.c. capillary arc plasma.
To investigate the introduction of solutions containing specific elements (Cd, Pb, Hg, I, As, Zn) into the plasma.
To analyze signal generation in both the arc and tail-flame regions and discuss sample introduction issues.

Main Methods:

Utilized a d.c. capillary arc plasma operating with argon as the carrier gas.
Employed a tantalum-filament atomizer for introducing sample solutions.
Observed and analyzed analytical signals emitted from the plasma arc and its tail-flame.

Main Results:

Demonstrated the plasma's capability to generate detectable signals for Cd, Pb, Hg, I, As, and Zn.
Confirmed signal observation in both the arc and tail-flame zones.
Illustrated and discussed the phenomenon of sample rejection by the high-temperature plasma.

Conclusions:

The d.c. capillary arc plasma shows potential for elemental analysis.
Sample introduction efficiency and plasma interactions significantly impact analytical signal intensity.
Further optimization is needed to mitigate sample rejection for improved analytical performance.