Q59 · CSIR-NET Chemistry, December 2019

Paper: CSIR-NET December 2019 · Subject: Inorganic Chemistry · Chapter: Analytical Chemistry · Topic: Analytical Chemistry – General · Marks: 2 · Difficulty: Medium

The pair of light source and atomizer resulting highest sensitivity to atomic absorption spectrometric measurement is:
(a)Hg lamp, nitric oxide flame
(b)Hg lamp, graphite furnace
(c)Hollow cathode lamp, graphite furnace
(d)Hollow cathode lamp; acetylene-nitric oxide flame
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
A hollow-cathode lamp with a graphite furnace gives the highest AAS sensitivity (c).

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