Search results with tag "Hollow cathode lamps"
Atomic Absorption Determination of Zinc and Copper in a ...
terrificscience.orgHollow cathode lamps are used as the source on an atomic absorption spectrophotometer. The lamp has a cylindrical metal cathode sealed in a glass tube containing argon or neon. When a voltage is applied, the metal atoms of the cathode become electrically excited and then emit photons of light when they return to the ground state.
Basic Principles of Atomic Absorption and Atomic Emission ...
www.philadelphia.edu.jo• Hollow cathode lamps normally operate at currents of 3-15 mA. • If the applied power is raised to several hundred mA, they exhibit a phenomenon called self-reversal. • This giant pulse of current changes the nature of the analyte absorption line so it will only measure the background absorbance. • A total
Hollow Cathode Lamps - Agilent
www.agilent.com– Hollow cathode lamps for Pb – Qty 4 (no part number listed – Serial nos. 34000, 34003, 34008 & 33051) – Hollow cathode lamps for Au – Qty 4 (no part number listed – Serial nos. 8431, 8429, 8443 & 8462) – Hollow cathode lamps for Cu – Qty 4 (no part number listed – Serial nos. 31254, 32412, 32444 & 32445)