Article | REF: P2719 V2

ICP-OES: inductively coupled plasma – optical spectrometry

Authors: Jérôme FRAYRET, Jean-Michel MERMET, Hugues PAUCOT

Publication date: September 10, 2012, Review date: January 10, 2019

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5. Interference

5.1 Interference description

Like all analytical techniques, ICP-OES is not immune to a certain amount of interference, which is one of the limits to its performance.

Two types of interference can be identified:

  • non-spectral interference due to matrix effects, which cause the signal to decrease or increase to varying degrees;

  • spectral interference, which means that the signal of the analyzed line is more or less overlapped by the signal of another line, or by the presence of a spectral background.

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