NDLI: Flow injection techniques of method development for flame atomic-a bsorption spectrometry.

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Flow injection techniques of method development for flame atomic-a bsorption spectrometry.

Content Provider	CiteSeerX
Author	Bysouth, Stephen R. Sarkissian, Lala L. Tyson, Julian F. Adeeyinwo, Christina E. Idris, Ahyar
Abstract	The flow injection introduction of samples that would be difficult by conventional nebulisation owing to dissolved solid content, viscosity or quenching effects on flame reactions is demonstrated. The various ways of achieving sample dilution by control of volume injected, tube dimensions and flow-rate are discussed and a manifold described for producing solutions for calibration purposes and diluting off-range samples. The important characteristics of the nebuliser and instrument for flow injection work are evaluated. A simple manifold for investigating interference effects is described and its use illustrated for some well known effects. The possibilities of achieving pre-treatment by solvent extraction and extension to include indirect methods are discussed and the role of flow injection procedures in the method development for, and the extension of the range of application of, flame atomic-absorption spectrometry is critically evaluated. Keywords: Atomic-absorption spectrometry; flow injection analysis; sample pre-treatment; nebuliser effects; solvent extraction When an instrumental method has been selected for evalua-tion as the final stage in an analytical procedure,l there are a number of experiments to be performed. For flame atomic-absorption spectrometry (AAS) these may include a study of
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Subject Keyword	Solvent Extraction Important Characteristic Analytical Procedure Method Development Indirect Method Flow Injection Technique Flow Injection Work Various Way Calibration Purpose Flow Injection Analysis Flame Atomic-a Bsorption Spectrometry Instrumental Method Solid Content Atomic-absorption Spectrometry Sample Pre-treatment Flow Injection Introduction Off-range Sample Final Stage Tube Dimension Flow Injection Procedure Sample Dilution Interference Effect Simple Manifold Flame Atomic-absorption Spectrometry Flame Reaction Conventional Nebulisation
Content Type	Text

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