This application note outlines the theory of interference removal using the ORS, the design enhancements employed, and the typical performance of the Agilent 7500ce.
The document serves as Part One of a three-part series regarding environmental analysis using the Agilent 7500ce Inductively Coupled Plasma Mass Spectrometer (ICP-MS). It outlines the specific design goals achieved through enhancements in the sample introduction system, interface, ion optics, and Octopole Reaction System (ORS) regions. Key improvements include a new digitally driven RF generator for increased plasma robustness and a redesigned Omega lens to eliminate photons and neutrals while maintaining high ion transmission.
The instrument was specifically designed and optimized for analyzing trace metals in high matrix samples, including environmental, clinical, geological, and other sample types.
The instrument uses an RF Power setting of 1500 W when operating in normal mode.
The ORS is pressurized using a small flow of pure hydrogen at 1-5 mL min⁻¹.