Stage 4: Detection

Question 1

STAGE 1 Once they have pass through the mass spectrometer, the 1+ ions will hit a?

ands what do they gain?

Answer 1

As they hit this negative charge plate, they gain an electron

Question 2

STAGE 2 This gaining of an electron discharges the ion, and causes a current to be produced

Answer 2

This size of the current is proportional to the abundance of those ions hitting the plate and gaining an electron

Question 3

he detector plate is connected to a

Answer 3

computer, which produces the mass spectrum

Question 4

KE=

Answer 4

1/2mv(squared) mass velocity

KE = kinetic energy of the particles (J)

m = mass of the particles (kg)

v = velocity of the particles (ms-1)

Question 5

t=

Answer 5

t= d/s

s= speed (m/s)

t = time of flight of the particles (s)

d = the length of the flight tube (m)

Question 6

t=

KE = kinetic energy of the particles (J)

m = mass of the particles (kg)

t = time of flight of the particles (s)

d = the length of the flight tube (m)

Answer 6

t= d (square root) m/2KE

Question 7

What happens i f a 2+ ion is produced

Answer 7

Affected more by magnetic field producing a curved path with less radius and will half the charge to mass ration