Process NMR Symposia to be held at EAS 2007

John Edwards of Process NMR Associates has organized and sponsored two symposium sessions at the Eastern Analytical Symposium in Somerset New Jersey, November 12-15, 2007. One session will focus on high-resolution process NMR and the other on applications of TD-NMR in process control. The speakers and talk titles are listed below. Check the EAS site for exact details on the date and time of the sessions (EAS website). If you are interested in attending and would like to submit a paper for presentation visit the EAS Abstract submission site. Session Title: Process NMR Technology - High Resolution NMR John Edwards, Process NMR Associates, "Introduction to NMR in Process Control" Miko DeLevy, Qualion NMR Analyzers, "Standardizing and Stabilizing NMR Calibration Transfer" Paul Giammatteo, NMR Process Systems, "More from the Barrel - On-line NMR Increases Diesel Production and Quality" Marcus Trygstad, Invensys Process Systems, "Taking NMR into the Refining Process:  Best Practices and Benefits" Andreas Kaerner , Eli Lilly, "Get Your Head Out of the Sand: Use of Reaction-NMR to Better Understand Reactions in Process Development" Veena Bansal, Indian Oil Corporation, "Direct Prediction of Gasoline Properties for Monitoring Refinery Processes by 1H NMR Spectroscopy" Session Title: Process NMR Technology - TD-NMR Harry…

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Trans Fat Analysis by NMR

A series of Trans Fat standards was purchased from AOCS. The ability of 1H and 13C NMR to predict Trans Fat Content as well as  Saturated, Poly-unsaturated, and Mono-unsaturated Fat Content The data of the samples is presented in the table below:     PLS regression techniques were used to correlate 1H and 13C NMR spectral variation to the unsaturation level and type of unsaturation of the samples.   Processed 13C data is shown below:     1H NMR data is shown below:     The following correlations were obtained from the 13C NMR data.              

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NMR Analysis of Essential Oils – Example of Sri Lankan Citronella

The data below shows the ability of 13C NMR to assign the natural product distribution found in essential oils. Once assignment of the oil hgas been obtained by 13C NMR the 1H NMR can also be assigned. For QA/QC a benchtop 60 MHz system has enough resolution that authenticity of essential oils can be performed either visually of by PCA type analysis. Ger - Geraniol         GerAc - Geranyl Acetate        iEugMe - Methylisoeugenol       Bor - Borneol aPin - alpha-pinene        Lim -  Limonene        tOci - trans-beta-Ocimene      Cen - Camphene Cllo - Citronellol        Clla - Citronellal        GenD - Germacrene D         aCal - Citral A (Geranial) aTol - alpha-Terpiniol         cOci - cis-beta-Ocimene        Myr - Myrcene

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Process NMR for Transesterification Monitoring and Certification of Biodiesel

1H NMR has been used extensively to analyze biodiesel the vegetable oil feeds, reaction intermediates, and final products of the biodiesel transesterification process. See Oliviera et al, Talanta 69 (2006) 1278-1284 and Gnothe, J. Am. Oil Chem. Soc 78, 1025-1028 (2001) The final biodiesel product is a B5 (5% Biodiesel) or B20 (20% Biodiesel) blend of biodiesel in refinery produced diesel fuel. Researchers have performed method developments to analyze the biodiesel content in diesel fuels by NIR using 1H NMR as the primary method to quantify the biodiesel content. (See Jin et al, Fuel 86(7-8), 1201-1207 (2007) and Knothe J. Am. Oil Chem. Soc. 77 489-493 (2001). Process NMR at 60 MHz can be used to quantify the biodiesel directly. Below is an example slide of a biodiesel 1H NMR spectrum compared to two different diesel fuel spectra. The chemistry that is directly observed in the NMR spectrum as well as the distinct chemical regions that are present in the diesel and biodiesel make this analysis relatively straightforward. Chemometrics can be used or quantitation can be obtained directly from a simple spectral calibration. Biodiesel Production Monitoring NMR can be used to follow the reaction of biodiesel directly, the following slides…

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International Humic Substances Society International Humic Substances Society – details on standard humic and fulvic acid isolation methods – standard materials – NMR reference data on standard materials. NMR Meetings and Society Links A few society websites to keep an eye out for meetings as well as a few meeting links that I have come across recently. International Society for Magnetic Resonance in Medicine Clinical Magnetic Resonance Society European Society for Magnetic Resonance in Medicine and Biology Japanese Society for Magnetic Resonance in Medicine Society for Cardiovascular Magnetic Resonance Magnetic Resonance Managers Society RSC NMR Discussion Group Finnish NMR Discussion Group Spanish Magnetic Resonance Society Austrian NMR Discussion Group Australian and New Zealand Society for Magnetic Resonance German Magnetic Resonance Discussion Group Italian Magnetic Resonance Discussion Group 49th Rocky Mountain Conference on Analytical Chemistry – July 22-26, 2007 – Beaver Run Resort, Breckenridge, Colorado Society for Applied Spectroscopy 5th Alpine Conference on Solid-State NMR11th Brazilian NMR User Meeting / Workshop: NMR in South America – May 7-11, Rio de Janeiro State, BrazilFor information please contact Sonia Cabral de Menezes 45th Annual Meeting of The NMR Society of Japan Nov. 22-24, Kyoto, Japan MRS Symposium “Magnetic Resonance in Material Science” Nov.…

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