John Price
@jpricephysics.bsky.social
Physicist, retired professor, maker of NMR spectrometers, struggling flute player
I know this old scope’s days are numbered, but it’s been a good ride
November 27, 2025 at 8:29 PM
I know this old scope’s days are numbered, but it’s been a good ride
New app note: 125 MHz benchtop NMR for reaction monitoring and lab automation #ChemSky #NMR #NMRchat
See how the QM-125 makes benchtop NMR automation practical. Our application note shows a pump-driven, Python-controlled Fischer esterification reaction with clear reactant, intermediate, and product profiles. Visit www.qmagnetics.com/blog to learn more. 🧪
#NMRchat #flowchemistry #Automation
#NMRchat #flowchemistry #Automation
November 21, 2025 at 8:59 PM
3 Tesla fluorine benchtop NMR for perfluoroalkanes! #NMRchat #NMR #chemistry @qmagnetics.bsky.social
Interested in characterizing forever chemicals by benchtop NMR? The ¹⁹F NMR of 1H,1H,2H,2H-perfluorodecyl acetate on the QM-125 highlights its low-tension, hydrophobic, stable nature. ¹⁹F NMR helps reveal PFAS chain signals right on the bench.
🧪 #NMRchat #Chemistry #BenchtopNMR #FluorineNMR
🧪 #NMRchat #Chemistry #BenchtopNMR #FluorineNMR
November 14, 2025 at 5:15 PM
3 Tesla fluorine benchtop NMR for perfluoroalkanes! #NMRchat #NMR #chemistry @qmagnetics.bsky.social
Believe it or not, you can still buy a new Simpson meter. The product line is about 90 years old. #electronics #engineeering
November 8, 2025 at 3:13 PM
Believe it or not, you can still buy a new Simpson meter. The product line is about 90 years old. #electronics #engineeering
We’re proud to support local research efforts at the CSU Powerhouse Energy Campus, where the QM-125 NMR now provides everyday NMR accessibility to a research group. They will soon be using it for tracking electrochemical reactions, advancing their research within their own lab. #NMRchat #benchtopNMR
November 7, 2025 at 7:37 PM
I’m definitely doing this next year
Meanwhile Halloween 🎃 #Halloween2025 in #Pittsburgh
November 1, 2025 at 9:34 PM
I’m definitely doing this next year
Check out the ¹⁹F NMR spectrum of NaBF₄ at 3 T. Coupling of ¹⁹F to ¹¹B gives a quartet, while ¹⁰B yields a septet. The ¹¹B quartet dominates due to its higher natural abundance. The difference in multiplicity creates a beautiful example of ¹⁹F – ¹⁰/¹¹B coupling! #NMRchat #Chemistry #FluorineNMR
October 30, 2025 at 7:21 PM
If you need to change the sample tube in the Q Magnetics 125 MHz NMR spectrometer, it will only take a few minutes. With sample-delivery-by-flow, you are ready for both walk-up use and automated applications. #NMR #NMRchat @qmagnetics.bsky.social
The QM-125 delivers high-performance flow-based sampling built for automation and next-gen NMR.
Watch our new video to see how easy it is to replace the sample tube and keep your system running smoothly.
www.qmagnetics.com/post/sample-...
🧪 #NMRchat #flowchemistry #chemistry
Watch our new video to see how easy it is to replace the sample tube and keep your system running smoothly.
www.qmagnetics.com/post/sample-...
🧪 #NMRchat #flowchemistry #chemistry
Sample Tube Design & Replacement in the QM-125
The QM-125 benchtop NMR represents a new generation of analytical instrumentation built around flexibility, automation, and simplicity. Operating at 125 MHz, it delivers the highest field strength in ...
www.qmagnetics.com
October 23, 2025 at 4:12 PM
If you need to change the sample tube in the Q Magnetics 125 MHz NMR spectrometer, it will only take a few minutes. With sample-delivery-by-flow, you are ready for both walk-up use and automated applications. #NMR #NMRchat @qmagnetics.bsky.social
Longmont CO was lookin’ pretty progressive today!
Hugely big showing in Longmont CO for #NoKings peaceful protest gathering
October 19, 2025 at 2:24 AM
Longmont CO was lookin’ pretty progressive today!
Reposted by John Price
Also check out the invited speakers for ENC #ENC2026: www.enc-conference.org/ENC-Invited-...
ENC - Experimental Nuclear Magnetic Resonance Conference - Invited Speakers
www.enc-conference.org
October 19, 2025 at 1:50 AM
Also check out the invited speakers for ENC #ENC2026: www.enc-conference.org/ENC-Invited-...
Reposted by John Price
The proton triplet might fool you into thinking that the H-F ortho and meta J-couplings are equal. But nooooo
125 MHz 1,4-difluorobenzene proton and fluorine multiplets appear first-order with equal J-couplings, even though the protons are not magnetically equivalent. Observed splitting of 6.08 Hz in both multiplets is close to the average of these couplings.🧪 #NMRchat #chemistry #benchtopnmr
October 16, 2025 at 6:36 PM
The proton triplet might fool you into thinking that the H-F ortho and meta J-couplings are equal. But nooooo
Catastrophe
I don’t know who needs to hear this but the CDC is being eviscerated right now. America is not going to have any kind of outbreak response capacity after tonight. Americans’ health data is no longer secure. Say goodbye to federal public health in any capacity. It’s a disaster. We won’t recover.
October 11, 2025 at 5:08 AM
Catastrophe
Reposted by John Price
Stacked spectra of vanillin in benzene-d₆ and CDCl₃ reveal how solvent choice shapes chemical shifts. Benzene-d₆, with its strong anisotropic ring current, subtly shields aromatic protons and can spread the aromatic region compared to CDCl₃.
🧪 #NMRchat #Chemistry #benchtopnmr #flowchemistry
🧪 #NMRchat #Chemistry #benchtopnmr #flowchemistry
October 8, 2025 at 4:55 PM
Stacked spectra of vanillin in benzene-d₆ and CDCl₃ reveal how solvent choice shapes chemical shifts. Benzene-d₆, with its strong anisotropic ring current, subtly shields aromatic protons and can spread the aromatic region compared to CDCl₃.
🧪 #NMRchat #Chemistry #benchtopnmr #flowchemistry
🧪 #NMRchat #Chemistry #benchtopnmr #flowchemistry
It’s a wonderful little molecule, and not too hard to pronounce 😜
Acetaminophen, also known as paracetamol, is a widely used analgesic and antipyretic that relieves pain and reduces fever. It is cited as one of the safest and most effective ways to treat pain and fever.🧪 #NMRchat #Chemistry #flowchemistry #benchtopnmr #tylenol #acetaminophen
September 25, 2025 at 11:46 PM
It’s a wonderful little molecule, and not too hard to pronounce 😜
Another edible spectrum
At 125 MHz, benchtop NMR highlights methyl salicylate. Best known as wintergreen scent, it's used in flavorings, fragrances, and topical pain-relief products. Wintergreen plants produce methyl salicylate as a defense from pathogens and predators.🧪 #NMRchat #Chemistry #flowchemistry #benchtopnmr
September 21, 2025 at 8:29 PM
Another edible spectrum
A pair of 99.9985 kHz crystals from an HP3571A spectrum analyzer, part of a 5-stage filter that set the IF bandwidth. They are simply gold-plated flat plates packaged like vacuum tubes. Made by Northern Engineering Laboratories, Burlington WI.
September 21, 2025 at 8:12 PM
A pair of 99.9985 kHz crystals from an HP3571A spectrum analyzer, part of a 5-stage filter that set the IF bandwidth. They are simply gold-plated flat plates packaged like vacuum tubes. Made by Northern Engineering Laboratories, Burlington WI.
Reposted by John Price
We seem to be on an edible chemistry jag
At 125 MHz, benchtop NMR highlights the aromatic, methoxy, and aldehyde signals of vanillin. Widely recognized as the main component of vanilla-bean flavoring, it is also used in fragrances, cosmetics, and to improve the flavor of medications.
🧪 #NMRchat #Chemistry #flowchemistry #benchtopnmr
🧪 #NMRchat #Chemistry #flowchemistry #benchtopnmr
September 12, 2025 at 7:14 PM
We seem to be on an edible chemistry jag
We Are Watching a Scientific Superpower Destroy Itself www.nytimes.com/2025/09/08/o...
Opinion | We Are Watching a Scientific Superpower Destroy Itself
www.nytimes.com
September 8, 2025 at 11:51 PM
We Are Watching a Scientific Superpower Destroy Itself www.nytimes.com/2025/09/08/o...
For some samples, benchtop NMR at 125 MHz is equivalent to high-field NMR.
This 125 MHz spectrum of tributyrin demonstrates the high dispersion and high resolution of Q Magnetics benchtop NMR. Tributyrin is used as a prodrug of butyric acid. It has applications in colorectal cancer therapy and gastrointestinal health.
🧪 #NMRchat #Chemistry #flowchemistry #benchtopnmr
🧪 #NMRchat #Chemistry #flowchemistry #benchtopnmr
September 8, 2025 at 3:04 AM
For some samples, benchtop NMR at 125 MHz is equivalent to high-field NMR.
I hear Florida is going to make stopping at red lights optional. It’s your car! The government has no right to tell you how to drive it.
September 4, 2025 at 4:01 AM
I hear Florida is going to make stopping at red lights optional. It’s your car! The government has no right to tell you how to drive it.
Guv Jared Polis did an ask-me-anything on Reddit yesterday. It’s well worth reading. He remains strongly in support of vaccine access and is more critical of RFK Jr. than I expected. Unfortunately, no response about ICE building concentration camps in Colorado.
www.reddit.com/r/Denver/s/X...
www.reddit.com/r/Denver/s/X...
From the Denver community on Reddit
Explore this post and more from the Denver community
www.reddit.com
September 1, 2025 at 4:03 PM
Guv Jared Polis did an ask-me-anything on Reddit yesterday. It’s well worth reading. He remains strongly in support of vaccine access and is more critical of RFK Jr. than I expected. Unfortunately, no response about ICE building concentration camps in Colorado.
www.reddit.com/r/Denver/s/X...
www.reddit.com/r/Denver/s/X...
Reposted by John Price
At 125 MHz, the benchtop NMR of 4-Phenylbutyric Acid shows methylene and aromatic protons. This compound is important in biomedical research, used as a chemical chaperone to treat protein misfolding disorders such as cystic fibrosis.🧪 #NMRchat #Chemistry #flowchemistry #benchtopnmr
August 28, 2025 at 3:32 PM
At 125 MHz, the benchtop NMR of 4-Phenylbutyric Acid shows methylene and aromatic protons. This compound is important in biomedical research, used as a chemical chaperone to treat protein misfolding disorders such as cystic fibrosis.🧪 #NMRchat #Chemistry #flowchemistry #benchtopnmr