Andrii Kozytskyi
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nmrspectroscopy.bsky.social
Andrii Kozytskyi
@nmrspectroscopy.bsky.social
The author of the @nmr_spectroscopy blog on IG/X/TG/LI etc.
🍋 ¹H NMR of Lemon Juice
Freshly squeezed science!
This proton NMR spectrum of lemon juice reveals a rich mixture of natural metabolites. The intense multiplets around 2.6–2.8 ppm are from citric acid, the dominant organic acid in lemon.

#NMR #nmrchat #chemistry 👇🧵
July 16, 2025 at 10:06 PM
June 18, 2025 at 6:05 PM
My standard speed on this QNP-equipped Bruker is 100–150 routine ¹H spectra per hour (not ideal quality, of course — Z1 + Z2). Most folks don’t believe me 🤣
June 10, 2025 at 9:37 PM
June 5, 2025 at 9:07 PM
May 30, 2025 at 9:37 AM
It’s #NMRweekend ⁉️🧲 Write your answers in the comments section 👇. Note: This is an experimental spectrum. The explanation for the challenge will be published in a few days 😉.
#nmr #nmrchat #chemistry #organicchemistry #spectroscopy #quiz #nmrchallenge #nmrquiz
March 15, 2025 at 12:25 PM
March 9, 2025 at 11:09 PM
Fluorine in bicyclic molecules looks mind blowing 🤯.
#nmr #nmrchat #chemistry #science
March 8, 2025 at 10:09 PM
Multiplet of the week 🧲 ᗑ. This particular proton has four couplings to the ¹H nuclei of two diastereotopic CH₂ groups (³J = 4.95, 5.66, 6.00, and 7.28 Hz) and a ³J coupling of 6.63 Hz to the methyl protons.

#nmr #nmrchat #spin #coupling #chemistry #organicchemistry #spectroscopy
March 7, 2025 at 3:20 PM
Just insane 🤯. MNova calculated it as “m” 🙂. But I didn’t give up and extracted all couplings separately 👌. Its CH signal at the chiral centre bonded to 2XCH₂ and CH₃ 🤌🤌🤌
#nmr #nmrchat
March 6, 2025 at 8:28 AM
When my cat wants attention, he just lies down on my laptop while I’m working. )
#nmrchat #nmr
February 20, 2025 at 10:52 PM
Damn that’s true 🤣🤣🤣
#nmrchat
February 10, 2025 at 4:51 PM
February 7, 2025 at 7:40 AM
🧪💡🫶
January 4, 2025 at 3:23 PM
My colleague is definitely having fun with his 3D printer) #nmr #nmrchat @brukercorporation.bsky.social
December 24, 2024 at 10:54 PM
Ferromagnetic sample and its spectrum 👌
#nmr #nmrchat
December 6, 2024 at 11:38 PM
An awful sample with not that bad ¹H 🤷🏻‍♂️
#nmr #nmrchat
December 3, 2024 at 10:33 PM
Me like 🤔😕😐🤷🫤😵‍💫💫🤣
December 2, 2024 at 8:41 PM
The sample to illuminate the lab with.
#nmr #nmrchat #chemistry #organicchemistry
November 30, 2024 at 2:51 PM
Fast 13-carbons are dope 😎

#nmr #nmrchat #chemistry #organicchemistry
November 29, 2024 at 11:10 PM
Love luminescent samples #nmr #nmrchat
November 28, 2024 at 8:50 PM
Check out this monster 👿 ddqdd. The guys from CT convinced me to try this analysis, and it works great! However, from a practical point of view, I have to say I’m satisfied with tqt. 👇🧵
November 28, 2024 at 12:10 PM
Removing the bubbles and let’s go!
#nmr #nmrchat #chemistry
November 27, 2024 at 7:23 PM
Love when auto multiplet analysis works 👌🫶
#nmr #nmrchat
November 27, 2024 at 12:00 PM
What’s up everybody? What’s going on here ?
#nmr #nmrchat
November 26, 2024 at 10:30 PM