Pneumatic nebulization-photochemical vapor generation dual mode sample introduction system

Abstract

Efficient and economic devices and methods for dual-mode sample introduction of liquid samples to an analytical detector exemplified by an inductively coupled plasma mass spectrometer (PVG-ICPMS) or an inductively coupled plasma optical emission spectrometer (ICPOES) are described. Various embodiments of pneumatic nebulization (PN)-photochemical vapor generation (PVG) dual-mode introduction can enhance introduction efficiency for PVG-active elements and smooth, bubble-free nebulization for all elements. A compact yet highly efficient porous membrane gas-liquid separator (MGLS) in its various embodiments plays a key role in systems and methods described.

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