A Specialized Desolvating Nebulizer and Washout System for U-Series Dating with Multicollector ICP-MS - Application Note

Ab t tsrac: Multicollector ICP-MS instruments are specialized devices for high p -precision isotope ratio measurements. Prepared liquid sample p p pq p s may be concentrated (100 to 1000 µg/L) in elements of y ( µg ) interest; these higher concentrations can cause longer analyte washout times and signal spikes. This poster describes a low interest; these higher concentrations can cause longer analyte washout times and signal spikes. This poster describes a low flow (50 to 200 µL/min) desolvating nebulizer system with a fast washout w (50 to 200 µL/min) desolvating nebulizer system with a fast washout capability This nebulizer is also equipped with a dedicated autosampler that has a dual capability. This nebulizer is also equipped with a dedicated autosampler that has a dual-flowing rinse capability to minimize a flowing rinse capability to minimize any sample carryover Wetted parts are composed of fluoropolymers ny sample carryover. Wetted parts are composed of fluoropolymers such as PFA (perfluoroalkoxy) for lowest trace metal blanks and maximum chemical resistance Optimum operating conditions fo such as PFA (perfluoroalkoxy) for lowest trace metal blanks and maximum chemical resistance. Optimum operating conditions for t he nebulizer system with a contemporary multicollector ICP he nebulizer system with a contemporary multicollector ICP-MS are detailed, with data concerning signal enhancement and stability, interference reduction, and washout characteristics for U-series dating measurements