Which is NOT true of the flame atomic absorbance spectroscopy of iron? Question

Question

Which is NOT true of the flame atomic absorbance spectroscopy of iron?

Question 1 options:

a) The iron atoms in the flame absorb some of the light emitted from the hollow-cathode lamp. b) The flame replaces the cuvet of conventional spectrometers and the flame pathlength is typically 10 cm. c) The iron sample is aspirated into the flame, where the solvent evaporates and the iron analyte is atomized. d) A detector measures the amount of light generated by the flame and not absorbed by iron. e) The hollow-cathode lamp for iron emits wavelengths of light unique for iron.

Explanation / Answer

Solution

a) True - When the atoms make some transition they absorb the light

b) True

c) False - a liquid sample containing the metal analyte isaspirated into an air-acetylene flame, causing evaporation of the solvent and vaporization of the free metal atoms.

d) Trues

e) True

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