Elemental Analysis

Question 1

In atomic spectroscopy , what electrons does the process involve and what energy does it use?

Answer 1

Outer shell electrons, low energy

Question 2

In x ray spectroscopy, what electrons does it use and what energy ?

Answer 2

Inner shell electrons and high energy

Question 3

What is the equation for energy in atomic absorption and emission

Answer 3

E=h.f

Question 4

Name three types of atomisers in atomic spectroscopy

Answer 4

Electro thermal (ET-AAS) , Flame (FAAS and FAES) and Inductively coupled plasma (ICP-AES and ICP- MS)

Question 5

In AAS, is light of a specific wavelength absorbed when an electron in an atom jumps to a higher or lower energy level ?

Answer 5

Higher

Question 6

In AES is light of a specific wavelength emitted when an electron in the atom jumps to a higher or lower energy level?

Answer 6

Lower

Question 7

In MS, what are ions separated according to?

Answer 7

The mass-to-charge ratio