CH332

5/12/2013

Whitney King — Mon, 13 May 2013 12:11:46 +0000

Practice Exams: CH_332_Final_2008, CH332_2ndhour_exam_2008, CH332_2ndhour_exam_2008_Key

4/22/2013

Whitney King — Tue, 23 Apr 2013 00:14:16 +0000

Next Exam: 4/24/2013

Reading: Chapters 26, 27, 28, and 30

Homework: Due 4/30/2013: 26: 7, 14, 15, 16, 27: 14, 17, 20, 22, 25, 27

Resources: Chromatography Links, Pick a column, Solvent Strength

Practice Exam: CH 332 Second Exam 2010

4/8/2013

Whitney King — Tue, 09 Apr 2013 02:29:58 +0000

Reading: Chapters 16 – 18

Homework: Due 4/18/2013

IR and Raman

16: 1, 7, 10, 15
17: 1, 3, 6,
18: 2, 3, 6

Extra Problem:
Both Raman and FT-IR generally provide similar molecular identification results, so they tend to be competitive. A key advantage of Raman spectrometry is that it requires little or no sample preparation. In fact, samples can even be analyzed without removing them from their packaging materials, such as a glass bottle or plastic bag, making the technique particularly useful in various forensic and pharmaceutical applications.

Raman instruments have historically been much more expensive than FT-IR instruments because they require high-stability laser sources. Over the past 10 years, however, technology advancements have improved the sensitivity of Raman detectors while costs have dropped substantially.

In many applications, the extra cost of Raman spectroscopy can easily be justified in productivity savings. The analysis can usually be performed with a probe connected to a long fiber cable that leads back to the instrument, which may be located in a different part of the facility.

How is it possible to take a Raman spectra through a plastic bag? What type of improved detector technology is making Raman cost effective?

Resources: IR and Raman Database, http://www.perkinelmer.com/CMSResources/Images/44-131232BRO_FrontierFTIR.pdf

4/2/2013

Whitney King — Tue, 02 Apr 2013 00:29:57 +0000

Reading: Skoog chapters 11 and 20.

Homework – 20: 5, 10, 13, 15, 17, due 4/9/2013

Resources: Mass Spec Links, thermofisher_smi, QQQ_384k, LC-MS-TOF, ICR-MS, www.chemcalc.org

3/18/2013

Whitney King — Mon, 18 Mar 2013 01:17:09 +0000

Reading: Chapters 13, 14, and 15

Homework: 13: 12, 17, 18, 24, 14: 5, 8, 15: 4, 11 (optional)

Exam on Thursday

More Practice: CH332 Exam 1 2009, CH332_Exam_I_2009_Key

3/5/2013

Whitney King — Tue, 05 Mar 2013 01:18:50 +0000

First Hour Exam – 3/21/2013

Practice Exam: CH 332 Exam 1 2012

Resources: Zeeman Effect, Zeeman Effect II, Varian Zeeman Effect, Colby_College_Phosphorus, Simulated UV-Vis, errors in absorbance , Cavity Ring Down, Fourier 2012

2/25/2013

Whitney King — Mon, 25 Feb 2013 05:49:38 +0000

Reading: Please read chapters 8-10

Homework: 8: 5, 10, 12, 9: 9, 13, 16, 19 Due 3/7/2013

Resources: Light sources, Filters, Sample Cells, Sample Accessories, Optical Benches, monochrometer_calcs,

2/13/2012

Whitney King — Tue, 19 Feb 2013 02:18:52 +0000

Reading: chapters 6 and 7

Homework (Due 2/28/2013): Skoog 6: 4, 8, 9, 11, 7: 9, 12, 15, 18

Resources: NELwatertesreport, Scattering

2/7/2012: Electronics

Whitney King — Sun, 03 Feb 2013 14:52:01 +0000

Reading: Chapters 3 and 4.

Homework: Appendix 1:8, 16, 23, Chapter 1:10 (due 2/26)

2) Pick an article from the linked Analytical Chemistry Review and prepare two slides detailing to most interesting aspect of the article. Each student should pick a different article (Due 2/26)

Resources: Analytical Chemistry Review (http://pubs.acs.org/toc/ancham/current)
Digital Electronics, Useful Tutorials, Statistics_for_linear_equation_2009

2/4/2013

Whitney King — Fri, 20 Jan 2012 14:28:35 +0000

Reading: Skoog chapters 1, 2, 3, appendix 1 on statistics

Homework: 1) Electronics_Homework_2009 due 2/14/2013

Resources: Statistics_for_linear_equation_2009

deLevie_Macros_332_2009

Basic Passive Components

Basic Passive components II

Digital Electronics, Useful Tutorials

Frequency and Amplitude and dB