PG Instruments new hydride generation system with integrated precision micro peristaltic pump, improves ICP detection limits for hydride-forming elements such as As, Se, and Sb. Sub-ppb levels of such elements are often difficult to detect with ICP, but the PG Instruments Hydride Generator converts hydride-forming elements to gas, increasing signal intensity. intensity. In a low-volume quartz gas-liquid separator the elemental hydrides are separated from liquid waste then carried to the ICP injector. The system can increase ICP sensitivity by an order of magnitude or more over a nebuliser-only system.
The hydride generator is available with 4 or 6 channels. The 4-channel version is for basic hydride formation, and the 6-channel version allows the user to add an internal standard, such as Bi.
The above shows calibration ldata obtained with the ICP5000 for Selenium and Arsenic (0 – 10ppb) using the PG Instruments Hydride generator system.