Nu Instruments | Long-Term Stability of Dual-Mode Ion Counting Calibration
This study evaluates the long-term stability of the Attom detector crossover calibration. Results demonstrate highly stable detector performance across varying signal intensities over an extended period.
High resolution ICP-MS applications often require detection of both major and trace elements within a single analytical run. Achieving this demands a detector system with a wide dynamic range and stable calibration.
The Attom uses a unique attenuation system that extends pulse-counting performance without relying on analogue detector modes. Calibration data were collected over approximately one month.
Results showed that attenuation factors remained mass independent and stable to better than 1% RSD throughout the study period. This supports confident analysis of samples with widely varying concentrations.
Key Takeaways:
- Stable crossover calibration maintained over one month.
- Mass-independent attenuation performance demonstrated.
- Supports wide dynamic range elemental and isotope analyses.
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