Typical 1H NMR chemical shifts of carbohydrate ring protons are 3–6 ppm (4.5–5.5 ppm for anomeric protons).
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In carbohydrates this discussion is for creating a scholar friendly and helpful facts on carbohydrates structure elucidation with NMR.
02 March 2021 7,082 3 View
I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...
01 March 2021 1,587 6 View
I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...
27 February 2021 4,703 1 View
Greetings to all of You! I have searched some research papers for the designing of a proximity coupled patch antenna. Researchers are talking about the impedance bandwidth of the antenna but...
24 February 2021 7,662 3 View
This insect is minute in size around 1 mm and not clearly visible with naked eye.
22 February 2021 5,907 11 View
Hi, i am conducting a Monte Carlo simulation for my new distribution but the MSE values are increasing while the sample size increase, does any experience this issue before and what should i do...
22 February 2021 3,680 4 View
Our team is designing a smart water C&C dashboard for a smart city initiative. As we look into the current smart water system landscape, we couldn't reconcile to a definitive solution that...
16 February 2021 1,094 3 View
the samples are not completely soluble - just swelled the solvents that's mean the sample may be partially soluble any suggestion, please
16 February 2021 8,801 3 View
We are doing a study on impact of aerosol on precipitation. Which satellite data and which wavelength will be the best. or can some one suggest a criteria to be adopted to choose an instrument...
12 February 2021 6,324 3 View
Hi everyone, I would really appreciate it if someone can tell me when and why a raw fluorescence starts below zero. In the picture attached below the blue colour curve starts from a negative...
09 February 2021 4,642 3 View
I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...
01 March 2021 6,999 3 View
I performed a Proton NMR of graphene powder prepared by electrochemical exfoliation technique. It shows some peaks. But I can't understand it.
21 February 2021 8,947 3 View
I am interested in using TLC to detect non-linear xylooligosaccharides. What would be the best visualisation solvent? Would aniline phthalate solution be suitable? I have also seen people...
02 February 2021 7,748 3 View
Prosopis juliflora is considered a noxious weed but its eradication is very costly inhivitive if no impossible ! We have very strong openion that it's spread could be chacked only if it's pods are...
25 January 2021 4,433 7 View
I have some basic questions about the behavior of a charged particle in a static B-field. 1. Without a B-field, the particle has spin, with random orientation and spin frequency. a) What...
24 January 2021 1,389 3 View
I wanna to have proton energy according to their number ( E=f(N) ).
23 January 2021 2,788 2 View
What are the common adulterants in commercial honey? how to identify pure honey and adulterated honey with the help of NMR spectroscopy? Is there any other technique to check purity of honey?
20 January 2021 5,456 12 View
I am a novice to NMR and need help in understanding what i am looking at in terms of 11B 3Q MAS NMR graphs. Any resources for beginners would be helpful in interpreting the data. Literature only...
20 January 2021 2,648 3 View
Hello, I am trying to identify the formation of a synthesis product. Knowing the precursors, I focused on the identification of the H-C long-range coupling between sites (a/b) and (a/c) using...
19 January 2021 8,438 5 View