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Determination of bismuth in solid samples by Atomic fluorescence spectrometry (AFS) (CAT#: STEM-ST-0145-WXH)

Introduction

Bismuth is a high-density, silvery, pink-tinged metal. Uses. Bismuth metal is brittle and so it is usually mixed with other metals to make it useful. Its alloys with tin or cadmium have low melting points and are used in fire detectors and extinguishers, electric fuses and solders.




Principle

Atomic fluorescence spectroscopy (AFS) is the emission of radiation energy in the UV-visible region from gas-phase atoms that have been excited to higher energy levels by absorption of radiant energy. Usually, a flame is used to obtain the atom in a gaseous state. It is a radiative emission process that proceeds from the lowest singlet (S1) to the singlet ground state(S0).

Applications

Atomic Fluorescence Spectrometry (AFS) is an analytical technique that is primarily used to detect and quantify metals. It is an exceptionally sensitive technique that relies on exploiting the distinctive fluorescent spectra of each specific metal.

Procedure

1. Sample preparetion
2. Sample ionization
3. Detection

Materials

• Line Source
• Nebulizer-burner system
• Monochromators/Filters
• Detector, Amplifier, Readout