Agilent, 9910040000, Hydride absorption cells for VGA 76/77, quartz, 2/pk

The quartz hydride absorption cells are replacement optical cells for compatible VGA 76 and VGA 77 vapor-generation atomic absorption accessories. During hydride-generation analysis, gaseous analyte species are transported from the reaction and separation path to a heated absorption region for atomic absorption measurement. The quartz cells provide the designated atomization and optical passage for these determinations. The package contains two cells, allowing maintenance of the appropriate vapor-generation AA configuration. A quartz hydride absorption cell is not the same component as a flow-through cold-vapor mercury cell, which uses a different operating arrangement. Before installation, ensure that the mounting hardware and vapor transfer tubing are compatible with the system and that the cell is positioned correctly in the optical path. Handle quartz surfaces carefully to avoid scratches or deposits that can increase noise and background absorption. Maintain clear drains and gas paths to reduce liquid carryover. Replace damaged or heavily contaminated cells, then confirm analytical sensitivity with blanks and standards.