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Technical Note

Attenuation Mode on the Avio 220 Max ICP-OES for Simplified Analysis of High Concentration Elements

Introduction

In ICP-OES analyses, it is common to measure elements present at high concentrations, such as minerals, matrix elements in alloys, and plating bath solutions, to name just a few examples. However, when concentrations are too high, the response becomes non-linear, which can lead to inaccurate results.

Attenuation mode, only available on the Avio® 220 Max hybrid simultaneous ICP-OES, selectively reduces analyte signal, allowing higher concentrations to be measured, thereby extending the dynamic range of ICP-OES without affecting the ability to measure analytes present at lower concentrations. These unique capabilities provide the user simplified methodology, minimal sample dilution, and the ability to measure higher concentrations without having to use and characterize alternate wavelengths.