Question 1

a) With the aid of appropriate annotated diagrams, describe the role(s) of the flame and plasma

sources used in AAS, MP-AES and ICP-MS instruments.

b)Explain the role of the hallow cathode lamp in AAS. Why is a HCL not required for ICP-AES or ICP-

MS? Your answer should include appropriate annotated diagrams.

[10 marks; 350 words maximum]

c) Using scholarly databases, identify and describe a study in which spectroscopy (AAS, ICP-AES, ICP- MS, luminescence, infrared, or UV-Vis) was used to address a "real-world" problem.