Determination of Sulfide ion in sewage waters by Atomic fluorescence spectrometry (AFS) (CAT#: STEM-ST-0154-WXH)

Introduction

Sulfide is an inorganic anion of sulfur with the chemical formula S2- or a compound containing one or more S2- ions. Solutions of sulfide salts are corrosive.<br />Many metal sulfides are so insoluble in water that they are probably not very toxic. Some metal sulfides, when exposed to a strong mineral acid, including gastric acids, will release toxic hydrogen sulfide.

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Principle Applications Procedure Materials Notes Related Products

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

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