Ex8 Mass spectrometry

Wed, 06/05/2013 - 08:46 -- sewm02

Ex8 Mass spectrometry

 

Question 1: Diagram the GC-MS.

Reference (Justin)

Principles of Instrumental Analysis(5th ed) pg 719

Annotation

The book gives a nice diagram of the GCMS.

 

Question 2: Draw and explain how a magnetic sector mass spectrometer functions.

Reference (Justin)

Quantitative Chemical Analysis (7th ed)pg 475

Annotation

The book shows a good diagram of a magnetic sector mass spectrometer.

 

Question 3: Draw and explain how a transmission quadruple mass spectrometer functions.

Reference (Justin)

Principles of Instrumental Analysis(5th ed) pg 258-260

Annotation

The book gives a diagram of a quadruple mass spectrometer and has a couple of sections describing the spectrometer.

Reference (Joanna♥)

Mickey Laux explains how a quadrupole mass spectrometer works. 4 July 2009. University of California, Irvine.

http://www.youtube.com/watch?v=pjCun7QF19U

Annotation

This is a video lecture describing the movement of ions through the quadrupole. Very informative.

Special Notice

Be sure to plug headphones into the computer prior to watching the video. Apparently the computers do not have speakers.

 

Question 4: Explain chemical and electron ionization methods.

Reference (Justin)

Principles of Instrumental Analysis(5th ed) pg 500-506

Annotation

The book describes different ion sources for mass spectrometry including chemical and electron impact sources.

 

Question 5: Give the equation for resolving power.

Reference (Justin)

Principles of Instrumental Analysis(5th ed) pg 514

Annotation

The book gives the resolution(R) equation, defines the variables, and gives an example problem.

Reference (Justin)

http://en.wikipedia.org/wiki/Resolution_(mass_spectrometry)

Annotation

This page gives the same equation shown in the Instrumental Analysis book.