Can I take 13Carbon NMR in quartz NMR tube?

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How to identify and remove an impurity in the last step of unnatural amino acid synthesis?

I made an attempt to synthesize an unnatural amino acid containing phenyl group. In the last step of the synthesis I deprotected trityl protected amino group using 1N HCl aq., extracted, collected...

10 April 2024 487 1 View

How can I recover a product from an aqueous layer which contains magnesium sulfate?

During an extraction, I accidentally added a drying agent (MgSO4) to an aqueous layer that happened to contain my product. Is it possible to remove MgSO4 from the mixture or extract my product...

10 September 2023 3,364 2 View

How do you easily change daily index data to monthly basis index data?

Hello Here I have attached daily Kazakhstan Stock Exchange Index from Jan 2007 to Jan 2015. There is no available monthly data, only daily basis. So, do you know an easy way (may be using...

08 March 2015 7,424 7 View

Is it possible to create a Case-Shiller Index for a developing countries, such as Kazakhstan?

It seems that Index is one of the best predictor of crisis and upcoming boubles. Index was created for US market. So my question is does it have any needs to create same index for Kazakhstani market?

27 January 2015 4,370 4 View

Fabrication of narrow glass capillary (inner diameter 200~500 nm)?

I need a very narrow glass capillary for my research. How can I make a glass capillary with an inner diameter of around 200 to 500 nanometers?

08 August 2024 8,915 0 View

Why do paired electrons atoms produce no magnetic field lines?

If you think of electrons with spin as bar magnets, you know bar magnets of opposite polarity as long as they're not occupying the same spatial location don't cancel out each other's magnetic...

03 August 2024 3,927 2 View

How to correctly use the UTE and ZTE pulse sequences in Bruker's ParaVision software?

I am using a Bruker 600M solid-state NMR spectrometer with a Micro 2.5 microimaging system. The test sample is a tube of 1M LiCl aqueous solution, and the nucleus detected is 1H. I am trying to...

01 August 2024 9,227 1 View

Mossbauer spectroscopy Co0.6Mn0.4Fe2O4 MNPs?

Following curve related to Co0.6Mn0.4Fe2O4 Magnetic nanoparticles with extra phase a-Fe2O3. I will appreciate to help me to interpretation this spectroscopy, especially the blue line.

31 July 2024 9,140 2 View

IHC profiler in image j software. has anyone used it to quantify nuclear DAB positivity?

Dear researchers. I tried using the IHC PROFILER in image j to quantify nuclear DAB staining. I followed the instructions in the original article by "Varghese F, Bukhari AB, Malhotra R, De A...

29 July 2024 2,229 0 View

What is single absorption ESR spectroscopy ?

In the context of Electron Spin Resonance (ESR) spectroscopy, under what conditions is an absorption spectrum considered to be a single absorption spectrum?

25 July 2024 2,325 1 View

How many events should be counted for the analysis of apoptosis with nuclear staining with Hoechst 33342 whit microscopy ?

Greeting How many events should be counted for the analysis of apoptosis with nuclear staining with Hoechst 33342 whit microscopy ? Are 100 events count sufficient and three repetitions for...

25 July 2024 7,520 0 View

What is the physical meaning of the magnetic scalar potential?

In cases where the rotational of the magnetic field H is zero, we can define this field as the gradient of a scalar function defined as the magnetic scalar potential (similar to the electric...

21 July 2024 9,633 4 View

In Chip-seq, what will be the impact of adding proteinase K before removing the magnetic beads?

I was following this chip-seq protocol https://www.cellsignal.com/products/chip-kits-reagents/plus-sonication-chromatin-ip-kit/56383 what will be the consequence if on the following state "VI....

20 July 2024 5,612 0 View

Why electrical charge on the moving plate increase?

Hi, everyone This figure depicts a simulation of an electrostatic energy harvesting system in COMSOL Multiphysics software. My question is regarding the relationship between the changes in...

19 July 2024 4,694 4 View