Mass Spectrometer

1
Mass Spectrometer
http//chemistry.gsu.edu/facilities/resources.html

• The science, technology and implications on
  society and careers.

2

• Science Concepts
• Parallel Plates
• Electric fields/forces
• Magnetic fields/forces
• Net forces
• Circular Motion

http//www.physics.sjsu.edu/becker/physics51/mag_f
ield.htm
3

• Initially the substance is ionized then
  accelerated through a pair of parallel plates
• http//www.regentsprep.org/Regents/physics/phys03
  /aparplate/default.htm
• The velocity of the charged particle is
  determined by passing it through another set of
  parallel plates and a magnetic field.

The velocity of the charged particle is
determined by passing it through another set of
parallel plates and a magnetic field.
http//www.regentsprep.org/Regents/physics/phys03/
aparplate/default.htm
4

• After the particle moves undeflected through the
  velocity selector it passes into another magnetic
  field.
• The charged particle will be deflected according
  to the hand rules and move in a circular path.

5

• Finally, the charged particle hits a photographic
  plate or detector. Using the radius of curvature
  of the charged particle the mass and/or charge of
  the ion can be determined.

http//www.mhhe.com/physsci/chemistry/chang7/esp/f
older_structure/cl/m3/s3/clm3s3_1.htm
6
To Summarize
http//hyperphysics.phy-astr.gsu.edu/hbase/magneti
c/maspec.html
7
Applications of Mass Spectrometers in Society
http//www2.lut.fi/kete/laboratories/Inorganic_and
_Analytical_Chemistry/naytteenottaja5.gif
8
Vacuum Leak Testing
Mass spectrometer can measure the small amount of
Helium that may escape through micro fractures
in Vacuum equipment
http//www.tes.bam.de/e_ram/pics/messtechnik5a.jpg
http//www.tqc.co.uk/images/index.2.jpg
9
Structural Analysis of Molecules
http//www.osha.gov/dts/sltc/methods/organic/org08
2/org82fig4.gif
http//www.cchem.berkeley.edu/erwgrp/images/bird.g
if
10
Radioactive Dating
Mass spectrometer determines the C14/N14 ratio
http//tesla.jcu.edu.au/Schools/Earth/EA1004/Strat
igraphy/Radiocarbon.gif
11
Space Exploration
Saturns Moon Titan Solar
Wind from the Sun
http//hyperphysics.phy-astr.gsu.edu/hbase/solar/s
oho.htmlc1
http//www.purezenergy.com/bryan_brandenburg/satur
n_and_titan_moon.jpg
12
Career Connection Chemical Technologist

• Education
• Required for SAIT entrance
• Math Pure 30, Chemistry 30
• English 30
• SAIT program
• 2 years diploma

• Duties
• carry out chemical reactions
• prepare standards and samples
• analyze samples using bench methods
• and sophisticated instrumentation
• prepare reports and required
• documentation
• maintain and upgrade laboratory
• instruments and equipment
• manage projects and make presentations
• about results.
• Average Salary
• 54,000/year

http//www.iwitts.com/html/assets/images/db_images
/db_chemicaltechnicianca112.jpg
13
References
Wikipedia Encylopedia, Mass Spectrometry ,
Retrieved on Wednesday April 18, 2007
from http//en.wikipedia.org/wiki/Mass_spectrometr
y Clark, Jim 2000, Mass Spectrometry , Retrieved
on Wednesday April 18, 2007 from http//www.chemgu
ide.co.uk/analysis/masspec/howitworks.html Wikiped
ia Encyclopedia, Helium Mass Spectrometer Retrieve
d on Wednesday April 18, 2007 from http//en.wikip
edia.org/wiki/Helium_mass_spectrometer Government
of Alberta, 2007, Chemical Technologist Retrieved
on Thursday April 19, 2007 from http//www.alis.go
v.ab.ca/main.asp