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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: jvm208 on June 19, 2016, 03:08:18 AM

Title: ICP OES dual view
Post by: jvm208 on June 19, 2016, 03:08:18 AM

Hi, I am new to using ICP OES and having trouble with understanding the concept of dual (axial and radial)
view (Perkin Elmer).

Could someone please explain the function and purpose of this?

Thank you.

Title: Re: ICP OES dual view
Post by: Corribus on June 19, 2016, 11:38:30 AM

This refers to where the aperture of the spectrometer is oriented with respect to the plasma flame. Radial view has the spectrometer oriented perpendicular to the axis of the flame and axial view has the spectrometer oriented parallel (as though the flame is pointed right at you). As I recall axial has significantly better sensitivity (because the effective path length is longer) but also more chemical interferences (because you are also assaying light emitted from the cooler part of the flame, where atomization is less efficient). A dual instrument allows you to select which mode you use for any given experiment.

Title: Re: ICP OES dual view
Post by: jvm208 on June 27, 2016, 07:33:25 AM

Thank you for your kind explanation - it is much clearer now  :)