1

Elemental Analysis

Using the nucleus

2

Neutron Activation Analysis (NAA)

Emission spectroscopy

Using electrons

1

Absorption spectroscopy

2

Neutron Activation Analysis

Irradiate sample with neutrons

1

3

Neutron Activation Analysis

Excited nucleus

2

4

Neutron Activation Analysis

Nucleus decays

3

Gives out gamma ray

5

Neutron Activation Analysis

Nucleus becomes radioactive

4

6

Neutron Activation Analysis

Gives out delayed gamma ray

5

7

Neutron Activation Analysis

Product nucleus formed

6

8

Neutron Activation Analysis

Gamma rays are characteristic

Measure energy of gamma rays

Analyze element

9

Neutron Activation Analysis

Advantage

Non-destructive of sample

Require nuclear reactor

Disadvantage

10

Neutron Activation Analysis

Qualitative &

quantitative

multi-element

analysis