Question: 4(a) An acid-digested water sample was presented to a final student for the analyses of a Cu, Zn, Fe, Mn, Ni, and Cd. He was

4(a) An acid-digested water sample was presented to a final student

for the analyses of a Cu, Zn, Fe, Mn, Ni, and Cd.

4(a) An acid-digested water sample was presented to a final student for the analyses of a Cu, Zn, Fe, Mn, Ni, and Cd. He was confused about whether to use atomic absorption 1 spectrometer (AAS) or inductively coupled plasma-atomic emission spectrometer (ICPOES) for the 'analyses. Justiffy why you would recomniend ICP-OES (6 marks) (b) Discuss the operating principle of inductively coupled plasma-atomic emission spectrometry (ICP-AES) (7 marks)

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