Nu Instruments | Extending ICP-MS Matrix Handling with the Attom ES High Matrix Kit

Traditional ICP-MS analysis is often limited by the amount of dissolved solids that can be introduced before cone contamination and signal drift occur. The High Matrix Kit addresses this challenge through an alternative sample dilution approach combined with modified torch and gas flow configurations.

Using a larger injector torch and controlled aerosol dilution within the plasma, the system can process solutions with substantially higher salt concentrations than conventional ICP-MS methods. Optimised operating conditions also reduce oxide formation and maintain robust plasma performance.

Testing with undiluted 1% sodium chloride solutions demonstrated stable operation over extended periods without interface maintenance. Internal standard correction provided consistent results across multiple elements, with reported concentrations remaining highly reproducible throughout 14-hour analytical runs.

Key Takeaways:

• Analyse substantially higher dissolved solids concentrations without significant drift.
• Maintain excellent long-term analytical stability and precision.
• Reduce sample preparation requirements for challenging matrices.