Plasma 3

A third-generation multi-collector ICP-MS with Enhanced Abundance Transfer Optics (EATO) for improved sensitivity and a robust RF generator with frequency tuning.

• Status: Active
• Country: UK
• Isotopic: Yes
• Elemental: Yes
• Type of measurable elements: Metals and non-metals
• Measurable isotopes/elements: Lithium to uranium, including actinides and heavy metals
• Analyzer type : Magnetic Sector MS
• Ion source type: Inductively Coupled Plasma
• Inlet types: Laser ablation, desolvation systems, autosamplers, gas chromatography, and cold vapor generation
• Mass range : 3–310 amu
• High Resolution : Yes
• Mass resolution/ Mass resolving power : >800 (typical), with pseudo-high-resolution and full high-resolution capabilities
• Multicollector : Yes
• Collectors qty : 16 Faraday cups (basic) with up to 6 ion counters (maximum)
• Sensitivity : Dry plasma: U: 410 V/ppm, Pb: 500 V/ppm Wet plasma: U: 40 V/ppm, Pb: 50 V/ppm
• Abundance sensitivity : <2ppm at -1 amu spacing relative to 238U; <0.5 ppm with deceleration filter
• Dynamic range : >10¹² with enhanced collector and amplifier configurations
• Detection limits : Sub-ppq for trace isotopes
• Precision : High precision for isotopic ratio analysis; <0.032% RSD for Nd isotopes over 7 hours
• Signal stability, relative standard deviation : <0.05 ppm with EATO and deceleration filters
• Detector type : Faraday detectors, discrete dynode SEMs, and Daly detectors
• Possible amplifiers : 10¹⁰, 10¹¹, 10¹², and 10¹³ ohm resistors with software-switchable configurations
• Acceleration voltage : 10 kV
• Reaction cell system : No
• Spray chamber : Peltier-cooled cyclonic spray chamber
• Nebulizer : Concentric nebulizer
• Peristaltic pump : multi-channel for sample introduction and drainage
• Torch : Advanced torch box design for flexibility and stability
• Interface : High-capacity Jet Interface with optimized pumping for vacuum stability
• RF generator frequency : 27.12 MHz
• RF generator power : 2.0 kW
• Geometry type : Nier-Johnson forward geometry
• Focusing type : Double focusing with magnetic and electrostatic sectors
• Magnetic sector radius/ angle : 250 mm/70 deg
• Electric sector radius/ angle : 350 mm/ 70 deg
• Cooling system : Water-cooled system for optimal thermal stability
• Vacuum system : Fully turbo-pumped with additional rotary pumps for plasma and interface regions
• Gas supply: Argon with additional helium for laser ablation systems