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Table of Contents GC/FT-IR How
Does it Work? GUEST COLUMNIST Ed Pankau, Bio-Rad Laboratories Spectroscopy Division A gas chromatograph is a great tool for separating complex mixtures into pure components. There are many instruments available that detect components that elute from the chromatograph. Some detectors, like a flame ionization detector (FID), offer sensitivity, but lack specificity in identifying components. There are systems that use spectroscopy to actually identify the materials eluting, like GC/ Mass Spectrometry. Another technique that can be used is GC/FT-IR. This technique was first commercialized over 20 years ago. The combination of a GC and FT-IR create a powerful system that can be used to solve a large number of problems in the laboratory. GC/FT-IR has been used by many laboratories (crime, environmental, industrial, flavor & fragrance, solvent, oil and petrochemical). GC/FT-IR couples a gas chromatograph to a Fourier Transform Infrared Spectrometer. The FT-IR generates "infrared fingerprints" of the separated components to get structural information of the molecules. The most common configuration for GC/FT-IR sampling uses a light pipe. Here’s how it works:
The resulting infrared spectrum is obtained from the pure, separated compound and can be compared to computerized spectral libraries to identify the material. Thousands of vapor phase spectra are available for organic compounds and these can be used to identify the unknown spectrum. The FT-IR spectrum can be used for compounds that are difficult to identify by other techniques such as geometric isomers. Simple examples are ortho-, meta- and para-xylenes; eugenol, cis- and trans-isoeugenol and penanthrene/anthracene. The FT-IR spectrum can also be used to quantify compounds in complex mixtures such as oxygenates in gasoline.
MCF SHORT COURSE INFO Last Chance Reminder: Topics in Advanced Gas Chromatography December 7th & 8th, 1999 Refer to the MCF Website (www.minnchrom.org)
for details! To register, complete the website registration form and send it with a check for $400, payable to the Minnesota Chromatography Forum Announcing: January 11th – 13th, 2000 MCF’s first course in 2000!!! - A three day workshop in beginning gas chromatography! Taught by two of our most popular instructors, this workshop provides introductory training in the applications of GC for practical industry and laboratory problems. "Hands On" instrumentation training by local vendors is included each afternoon! This class will not be
offered again until January 2001!!! Program: Sessions will begin at 8:00 AM and end at approximately 5:00 PM. Lunch will be provided each day along with morning and afternoon breaks. Parking is available nearby (pay lot).
Day One
Day Two
Day Three
For class information, contact Janice Jopke at (612) 949-2518 or email at jjopke@msn.com. For further course content information email Gary Reineccius at garein@che2.che.umn.edu To register for the course, print and complete the website registration form and send it with a check for $600, payable to the Minnesota Chromatography Forum. Coming Soon: Chromatographic
FT-IR and February 16th & 17th, 2000 Refer to MCF Website (www.minnchrom.org)
for details! Announcing: Introduction to High Performance Liquid Chromatography January 25th - 27th, 2000 It’s time again for the MCF’s three day workshop in beginning liquid chromatography! The intent of this workshop is to provide introductory training in the applications of HPLC to practical industry and laboratory analytical problems. A full day of "Hands On" training with instrumentation from local vendors is included! Please note that
registration is limited to 24 students ~Registration Deadline is January 14th, 2000~ Program: Sessions will begin at 8:00 AM and end at approximately 3:30 PM. Lunch will be provided each day along with morning and afternoon breaks. Parking is available nearby (pay lot).
Tentative Agenda: Day One
Day Two
Day Three
For class information,
contact Jan Jopke, at (612) 949-2518. To register for the course, complete the website registration form and send it with a check for $600, payable to the Minnesota Chromatography Forum. MCF Fall Quarterly Meeting David Eikens Dr. David Rainville, Professor of Chemistry at the University of Wisconsin - River Falls, will discuss the history and chemical aspects of wine. As part of the presentation Dr. Rainville will bring a selection of wines for us to taste. For further information please visit the MCF website.
Directions: From the West: Follow I-94 east to McKnight Rd South (Exit 246B).Turn right (south) onto McKnight Rd and then take the first right onto Burns Ave. From the East: Follow I-94 west to McKnight Rd South (Exit 246C).Turn left (south) onto McKnight Rd and then take the first right onto Burns Ave. 20 October 1999 MCF Board Meeting Minutes Pat Sackett Present: G Bailie, L Charpentier, A Dallas, D Eikens, J Jopke, R Ravichandran, P Sackett, W Swanson, B Wittrig Treasurer’s Report: The balance has increased approx. $2000 since August, due to advertising income from the newsletter and website. Bin Cai is investigating changing banks to avoid the fees being assessed. Symposium Committee Report: Most focus speakers have been lined up, and the keynote speaker should be finalized during November. At that point full-scale publicity efforts will be initiated. Construction at Earle Brown Heritage Center should allow expanded vendor facilities, and all sessions should occur on a single floor. The Committee is investigating having more casual seating for between-session conversations. Education Committee Report: The GC course will be offered 11-13 January, and registration for Advanced HPLC suggests that course will close well in advance. A lecturer for a GPC course at the Symposium is being sought, as are suggestions for other course topics. Flyers for the FT/IR course should be out at the end of November. Program Reports: Dr. David Rainville will discuss the history and chemistry of wine on 11 November at the Holiday Inn 3M. Social hour at 6:30, talk at 7:30, a flyer will be sent. A topic and speaker for the January meeting haven’t yet been set. Palmer and Undergraduate Awards: Luke will begin the process of selecting a Palmer awardee by issuing a call for nominations. The status and nature of the Undergraduate Award continues to occupy the thoughts of the Education Committee, and brainstorming on ways of generating applications will continue. Membership: No real change in the membership roster. Given the accessibility of the website and the lack of response we’ve experienced from formal printed brochures, the need for anything beyond a downloadable form was questioned. Since electronic updates are simpler than printing new brochures, new brochures will not be prepared. Membership flyers will continue to be inserted into the newsletter for posting. Website: David reset the Status settings on 19 August, and since then we’ve been averaging 4.6 hits per day. The vast majority are from the US, although we’ve been getting the odd hit from France, India, etc, and 7 from the United Arab Emirates. Four or five new vendors have added links, and new information is being added on a regular basis. Newsletter: We continue to have printer problems and delays in posting the newsletter, although the printer insists those troubles are behind us. The deadline for submissions will thus optimistically remain the 25th of the month. Next Meeting: Wednesday, 8 December, 7:30 pm, all members are welcome. Contact Pat Sackett (651 737 0467) for directions. From the President's Desk: Ravi Ravichandran The MCF Board met 10/21/99. It was gratifying to see all the elected members of the board. In my little over two years of involvement in MCF, this was the first time that all of the board members attended one single meeting! Kudos to everyone who made the valiant effort to be at the meeting. Next Board meeting is slated for December 8, 1999 at 7:30 pm at Pat Sackett’s residence. If you are wondering what we do at the board meetings, you are cordially invited to attend the meeting. Contact Pat Sackett for directions at 651/737-0467 or psackett@mmm.com. By the way, have you visited the MCF website lately? David Eikens has done a fantastic job of keeping the site updated. The quality of the site has resulted in increased vendor support. Please take a few minutes every week to visit the MCF website and keep yourself updated on upcoming MCF events. The Education committee has done a fantastic job of lining up courses. MCF truly fills the needs of its members by providing continuing education opportunities at a very nominal cost. Kim Grandprey and company - Keep up the good work! Ward Swanson, our Symposium Committee chair is off to a good start with the 2000 Spring Symposium organization. If you want to help out with symposium organization in anyway, please contact Ward Swanson at 612/832-2660 or wswanson@barr.com The board is still open to suggestions and ideas for increasing MCF’s membership base.. If you have any comments or ideas, please feel free to email me at rravichandran@mmm.com. This will be the last newsletter for this millennium. The next one will be coming out in January 2000. See you in the next newsletter. Have a very safe and happy holiday season! WANTED: Guest Columnists Do you have a new chromatography technique or process? Do you have tips that could help others? Please share! Be a MCF Newsletter Guest Columnist! We are looking for innovative ideas in the chromatographic field. Please share your experiences/ideas to help your colleagues. Send your submissions via e-mail or fax to a MCF Newsletter Committee Member listed below: carrie.berge@ch.novartis.com (f) 612 591-2941 kristi.brezinka@ch.novartis.com (f) 612 591-2941 |
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