# Stage 4: Detection Flashcards Preview

## Chemistry Time of Flight Mass Spectrometry > Stage 4: Detection > Flashcards

Flashcards in Stage 4: Detection Deck (7)
1
Q

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

ands what do they gain?

A

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

2
Q

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

A

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

3
Q

he detector plate is connected to a

A

computer, which produces the mass spectrum

4
Q

KE=

A

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)

5
Q

t=

A

t= d/s

s= speed (m/s)

t = time of flight of the particles (s)

d = the length of the flight tube (m)

6
Q

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)

A

t= d (square root) m/2KE

7
Q

What happens i f a 2+ ion is produced

A

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