My colleague Tyler Ozvat recently posted this NMR spectrum of tartrazine (FD&C yellow #5). The hydrazone NH proton has a chemical shift of 17.8! Don't the textbooks say the most deshielded protons are carboxyl and aldehyde? #NMR #NMRchat #benchtopNMR #chemistry

The tools we use are one of my favorite things about making #QMagnetics #benchtopNMR spectrometers. Yesterday we received new Borite lathe tools with TT-321 carbide inserts. The inserts are supposed to have a 1/64” tip radius. That’s important, so we checked them on an optical comparator. #NMR #scientificInstruments #chemistry #machinist

Here's a PTS-160 frequency synthesizer from my test equipment collection. PTS synths were supplied with #Varian #NMR spectrometers and are still commonly used in NMR labs. This one has seen heavy use in the Q Magnetics #QMagnetics R&D lab where we developed the world's highest field benchtop NMR spectrometer. The ancient HP-5328A counter on top has not been checked against a standard for >20 years. #NMRchat #benchtopNMR #electronics #chemistry

Tomorrow, December 1st, Thursday, starting at 1 pm CET / 7 am EST / 9 pm Japan Standard Time, free to register -> December 1, Thursday, 1:30 pm CET / 7:30 am EST, GIDRM Day (via zoom) Mobile low-field MRI: Technology developments and clinical applications in neurological disorders, free registration -> http://gidrm.org/index.php/activities/workshops/2022-workshops/gidrm-day-mobile-low-field-mri-technology-developments-and-clinical-applications-in-neurological-disorders #NMRchat #NMRevents #NMR #MRIchat #BenchtopNMR

December 1, Thursday, 1:30 pm CET / 7:30 am EST, GIDRM Day (via zoom) Mobile low-field MRI: Technology developments and clinical applications in neurological disorders, free registration -> http://www.gidrm.org/index.php/activities/workshops/2022-workshops/gidrm-day-mobile-low-field-mri-technology-developments-and-clinical-applications-in-neurological-disorders #NMRchat #NMRevents #NMR #MRIchat #BenchtopNMR

I’m the kind of #physics person who likes to build #ScientificInstruments, lately #benchtopNMR #spectrometers for #chemistry. I need lots of #tools to do my thing. This is my #Hardinge HLV-H #lathe, just after I finished a renovation in 2017. It was made in 1968 in Elmira, New York. In that era in the US, there were two competing high-precision “tool room” lathes, this one and the Monarch 10EE.

I’m the kind of #physics person who likes to make #scientificinstruments, recently #benchtopNMR spectrometers. I need a lot of tools for what I do, some electronic, some chemical, and some mechanical. Here’s my Starrett bench micrometer. Look closely and you can see it’s giving the right answer for a 40 mm gauge block. #chemistry #NMR