(b). Atomic abs orption spectroscopy (AAS) is used for the quantitative determination of chemical elements in a sample which is based on absorption of light by free atoms. (i). State the type of element that can be analysed by AAS. (ii). In AAS, an atomic constituent in a sample will be analysed after atomisation process. Explain the principles of atomisation. (iii). Differentiate between a flame atomiser and an electrothermal atomiser, in terms of atomisation mode, temperature used and sensitivity.

(b). Atomic abs orption spectroscopy (AAS) is used for the quantitative determination of chemical elements in a sample which is based on absorption of light by free atoms. (i). State the type of element that can be analysed by AAS. (ii). In AAS, an atomic constituent in a sample will be analysed after atomisation process. Explain the principles of atomisation. (iii). Differentiate between a flame atomiser and an electrothermal atomiser, in terms of atomisation mode, temperature used and sensitivity.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter18: Raman Spectroscopy

Section: Chapter Questions

Problem 18.6QAP

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