Atomic Absorption Spectroscopy- Principles and Analysis

Section Introduction

Atomic Absorption Spectroscopy (AAS) is used principally for the quantitative determination of metal elements in aqueous and solid samples from a wide range of fields including medicine, food and geology. The technique is an Australian invention that has its origins in the CSIRO in the 1950’s and since then has become well established in laboratories around the world.

The essential theory and principles of AAS as well as its applications and limitations for chemical analysis will be investigated. This unit concentrates on atomic absorption based on flames. Flame AAS is widely used, simple, effective and relatively low cost.

Note that this section is written primarily around flame AAS. Graphite furnace is included as an alternative type of atomisation but is dealt with separately to avoid confusion.

There are five tasks you may undertake in this section.

  1. Atomic Absorption Spectroscopy
  2. AAS Instrumentation
  3. Quantitative Analysis
  4. Analysis on an AAS
  5. Report Results

Complete each task in order, following the steps and instructions.

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