Question

1. Which atomic spectroscopy technique has the greatest need for instrumental background correction?

a) Atomic absorption with flame atomization

b) Inductively coupled plasma atomic emission

c) Atomic absorption with electrothermal (furnace) atomization

2. Taking measurements at the peak absorption wavelength maximizes both sensitivity and linearity. True or False?

Answer 1

1. Atomic absorption with flame atomization - This correction is effective over the wave length range of 180nm-420nm. Because background level becomes significant at lower wave length range.

2. False - When more than one substance is quantified in the same method you should also prioritize a wavelength which molecule absorb proportionally, if you simply choose the maximum absorption of one substance and ignore the abosorption of the others your quantification will not be accurate..