Bismuth compounds are often used in cosmetics as a replacement for lead given its toxicity. Bismuth can be measured by Aurora’s hydride generation atomic fluorescence spectrometer, the LUMINA^TM 3300. The sample preparation consists of oxidizing Bi to Bi³⁺, which reacted with BABH₄ yields BiH₃. The BiH₃ is moved to the atomizer by the courier gas and broken down there. The ground state of Bi can be excited by the light by the Bi-HC lamp and the fluorescence sign is measured consequently by photo multiple tube.