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Materials used in the creation, detection, or manipulation of light, and their use in solving industry problems.

Atomic Absorption Spectroscopy (AAS)

Product Announcement from Heraeus Noblelight America LLC

Atomic Absorption Spectroscopy (AAS) -Image
Heraeus Hollow Cathode Lamps are mainly used in Atomic Absorption Spectrometry (AAS).
AAS uses the absorption of light to measure the concentration of gas-phase atoms. Since samples are usually liquids or solids, the analyte atoms must be vaporized in a flame or graphite furnace. The atoms absorb ultraviolet or visible light and make transition to higher electronic energy levels. The analyte concentration is determined from the amount of absorption.
AAS is a quantitative method that can determin the concentration of most elements at the part-per-million (ppm) level.
Typical applications:

Waters and Dilute Aqueous Solutions

• Purified waters – Power station steam water
• Rivers and Industrial effluents
• Sea water

Metallurgical Analysis

• Alloys
• Electroplating solutions

Inorganic Analysis

• Pure chemicals
• Determination of trace elements in geological samples
• Siliceous materials – ceramics, glass, cement etc
Heraeus products for AAS: