Process NMR Associates has developed an extension of its 1H NMR analysis of Aloe Vera raw materials and products analysis. Powder aloe vera raw materials (100x/200x) can be analyzed directly and juice samples (1x, 5x, 10x, commercial products) must be freeze dried for this analysis. The whole leaf markers utilized in this test to indicate […]
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Archives for January 2012
Talks to be Presented at IFPAC 2012 – Baltimore, MD January 22-25
Talk 1 by John Edwards Mutivariate Analysis of 1H and 13C NMR Data of Residual Catalytic Cracker Feed-Streams: NMR Pre-Processing Strategies that Allow the Development of Predictive Models of Physical and Chemical Properties that are Independent of NMR Instrument Magnetic Field Strength John C. Edwards*# and Jincheol Kim†*Process NMR Associates, LLC, 87A Sand Pit […]
Read MoreNew Conference Being Planned for Practical Applications of NMR in Industry
CASSS announces the first Practical Applications of NMR Conference 2012. Save the Date: October 15-17, 2012. The conference will be held at the Hyatt Regency Schaumberg, Schaumberg, IL USA. John Edwards has volunteered to serve on the organizing committee and will be developing a session of talks on on-line/at-line NMR and TD-NMR technologies. Other exciting […]
Read More1H NMR – 60 MHz Permanent Magnet System – Reaction Monitoring
Below are a few further examples of acetylation reactions of acetic anhydride with an excess of alcohol. The alcohols include tert-butanol and isopropanol. Reaction 1: Acetylation of t-butyl alcohol with acetic anhydride in the presence of acid. Reaction 2: Acetylation of Isopropanol with acetic anhydride in the presence of acid. Reaction 3: Methoxyacetone and hydroxylamine […]
Read MoreSelective Observation of High Resolution 19F Spectrum by 1.4 Tesla Process NMR System
Below is an example of a 19F NMR Spectrum obtained at 54.6 MHz on a 1.4 Tesla permanent magnet-based NMR System. This is a 2 minute spectrum obtained by co-averaging 16 FIDs after zero-fill, autophase, referencing of each individual FID. The NMR system is not locked. No apodization of the NMR FID data was performed. […]
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