CHEM 230 Chemical Separations
Fall, 2012
Student Presentations
I. Overview of Presentations
The goal of these presentations is for students to develop
an ability to learn to research, understand, and present topics. These skills are often needed for your career
when the techniques you learn become obsolete and are replaced with new
techniques. A list of topics is given in section II. If you are interested in other or related
topics, ask the instructor first.
Students will be working in pairs.
Each group is expected to have a set of readings for the class (see
section III below) and two homework problem (these problems will be for
classmates benefit and will not be graded see section IV). The presentation must be in Powerpoint. I expect
that the presentations will be about 30 minutes, but this will be announced
later once I know the number of groups.
Time will be reserved for questions and general discussion (the general
discussion may come later).
II. List of Special
Topics
1. Advanced extraction techniques: stir bar microextraction
2. Advanced extraction techniques: QuEChERS
3. Advanced extraction techniques: supercritical
fluid extraction
4. Advanced extraction techniques: molecular
imprinted templates for solid phase extraction
5. Portable/Microscale
GC
6. Supercritical fluid chromatography (may need
to narrow to use for isolation, for capillary column based SFC, etc.)
7.
Superficially porous particles in HPLC
8. Zirconia based
stationary phases for HPLC
9. Zwitterionic
stationary phases in HPLC
10. Monolithic HPLC/CEC columns
11. Chiral separations
(HPLC or GC)
12. 2D LC methods
13. Atmospheric pressure photoionization for
LC-MS
14. Modern direct MS interfaces (such as DESI)
15. Portable/Microscale
mass spectrometers
16. Ion mobility spectrometers
17. Non-aqueous capillary electrophoresis
18. Micellar Electrokinetic Chromatography
19. Electrochemical detection (for HPLC or CE)
20. Microchip CE (probably too broad a class)
21. Fluid flow fractionation
These
topics may be modified somewhat (e.g. narrower or broader focus) with
instructor permission. Most topics will
be limited to 1 student group. If
students can come up with what I think is a good topic, this could be added to
the list above.
III. Reading Materials
You will need to make
reading materials available to the class 1 week before your presentation. The reading materials could include a review
article, book chapters, primary research articles, etc. Try to target 20 to 60 pages of reading
materials. The most appropriate
materials are those not designed for experts in the field (many reviews are
meant to update experts on new results over the last three years these
reviews generally are not helpful for students learning basics of a new
technique). For more narrowly defined
areas, seminal journal articles are often best.
The materials can be made available to the class by either photocopying
an article/book chapter for the instructor to post or to give information
regarding a website (e.g. journal website) where the article can be downloaded.
For
example, the following references are useful references for the example
specialized topic, Aerosol-Based Detectors for HPLC:
Koropchak, J. A., S. Sadain,
X. Yang, L.-E. Magnusson,
M. Heybroek, M. Anisimov,
and S. L. Kaufman, Nanoparticle detection technology for chemical analysis, Anal. Chem. 1999, 71, 386A-394A.
(http://pubs.acs.org/cgi-bin/article.cgi/ancham-a/0000/71/i11/html/report2.html).
Koropchak, J. A., L.-E. Magnusson, M. Heybroek,
S. Sadain, X. Yang, and M. Anisimov,
Fundamental Aspects of Aerosol-Based Light Scattering Detectors for
Separations, Adv. Chromatogr.,
2000, 40, 275-314.
Dixon, R. W. and D. S. Peterson,
Development and testing of a detection method for liquid chromatography based
on aerosol charging, Anal. Chem., 2002, 74, 2930-2937.
Gamache, P. H., R. S. McCarthy, S. M. Freeto,
D. J. Asa, M. J. Woodcock, K. Laws, and R. O. Cole,
HPLC analysis of nonvolatile analytes using charged
aerosol detection, LCGC North America, 2005, 23, 150, 152, 154, 156, 158, 160-161.
Vehovec, T. and A. Obreza, Review of operating principle and applications of the
charged aerosol detector J. Chromatogr.,
2010, 1217A, 1549-1556.
IV. Homework Problems
You
will need to prepare homework problems to be distributed on the day of the
presentation. More information will be given on this
later.
V. The Presentation
The
presentation should be prepared using Powerpoint
slides. The file will need to be given
to the instructor so that it can also be posted on the class website. The presentation should include the following
parts:
1. A Title
Slide
2. An introduction that places the
methodology/technology you are discussing in context of other areas of
separation science. This also can give a
background into how this technology developed.
3. A description of the theoretical basis for
the methodology/technology
4. A description of advantages and disadvantages
of the technology vs. other technologies
5. A list of some applications of the technology
(this should focus on recent/innovative applications).
6. Concluding statements
It
is recommended that each student in a group present part of the material, but
it is probably better if you dont trade off speakers too often. More particulars (such as the targeted time)
will be given later
VI. Grade sheet (see
the last page for for the grade sheet used two years
ago for the presentations by the instructor)
VII. Questions and
Discussion
A.
Directly following the presentations
- since you are responsible for learning the material, you
should ask questions if you have difficulties understanding concepts
B.
Later discussions
- I
will try to pose questions related to presentations to stimulate additional
learning and discussion. We also can
discuss solutions to homework problems.
CHEM 230 Student
Presentations GRADING KEY
50 Points
Total
Names __________________________________
Title ________________________________
I. Preparation for Presentation (10 points)
A. Made articles available in time. (2 points)
B. Quality and relevance of articles found. (3 points)
C. Homework Problems (on time, quality of problems, reasonable answers) (5 points)
III. Presentation Content (20 points)
Title Slide _______ (1 points)
Introduction _______ (5 points)
Context ______ (why needed); Background ______ (how developed)
Theory of Technology (how does it/they work) __________ (6 points)
List of Advantages and Disadvantages ___________ (3 points)
Applications: ___________ (4 points)
Detailed, describing specific advantages ____ or lists _____
Conclusions ____________(1 pts)
Specific Comments:
IV. Presentation Quality (20 points)
Eye Contact/Interaction with Audience _____________ (4 pts)
Speaking Tone/Speed _____________ (4 pts)
Slide Quality _____________ (5 pts)
Level of Presentation (understandable) _____________ (5 pts)
Handling of Questions _____________ (2 pts)
Specific Comments: