ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,925, issued on July 14, was assigned to The United States of America, as represented by the Secretary of Agriculture (Washington).
"Pneumatic nebulization-photochemical vapor generation dual mode sample introduction system" was invented by Guoying Chen (North Wales, Pa.) and Bun Hong Lai (Roslyn, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 pn...