Has anyone any experience with investigating polymorphic states within solid organic peroxides?

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Do you really know the second law of thermodynamics? Can you formulate it precisely? Do you think this is a fundamental principle?

All thermodynamics textbooks say that the Clausius formulation and the Kelvin formulation are equivalent to the entropic formulation - and this is proven. Meanwhile, there is only one proof...

16 November 2023 8,453 58 View

Which tweezers for piranha solution?

Hello, I am planning to work with acidic piranha solution made from sulphuric acid 98% and hydrogen peroxide 30% (volumetric ratio 3:7). I worked with this solution before, but this time I want...

24 May 2023 8,273 1 View

Ti6Al4V and Ti6Al7Nb PEO coatings don't conduct?

Hi, I recently did the plasma electrolytic oxidation coatings on Ti6Al4V and Ti6Al7Nb. When it comes to potentiodynamic tests - they're getting stuck because of the curve is below 0 current...

19 May 2023 1,165 4 View

Southern blotting - why is low-stringency wash used?

I have a question regarding the hybridisation step in Southern blotting. I understand that once the probes are added, the membrane is washed in buffer of increasing stringency to increase the...

17 November 2022 961 1 View

How to increase glycolysis/glycolytic capacity in vitro while using Seahorse XF?

Dear all I am performing the mitostress seahorse assay in aortic endothelial cells. I am looking for a good positive control that would increase the glycolysis/glycolytic capacity when I treat the...

11 October 2022 4,349 1 View

What are best positive and negative controls for glucose uptake experiment?

Hello, I'm trying to determine the amount of glucose consumption using 14C-labelled 2-DG. What would be the good controls to use in the experiment? For negative I planned to use low glucose...

23 August 2022 5,211 2 View

The refractive index of 8YSZ, La2Zr2O7 etc.?

Where I can find the refractive index of 8YSZ, La2Zr2O7, Gd2Zr2O, Sm2Zr2O7, Nd2Zr2O7 or other zirconates of rare earth elements?

11 August 2022 8,315 4 View

Does anyone have data how many total protein can I isolate from different tissues with Ripa buffer??

As above. Especially I'm iterested in fat, muscle, liver and PBMC cells.

27 February 2022 9,736 1 View

GC-MS analysis of essential oils composition - types of columns?

Is it possible to replace the Agilent HP-5MS 30m x 0.25mm x 0.25μm column with the TraceGOLD TG-5 SILMS 30m x 0.25mm x 0.25μm column in GC / MS analysis of essential oils?

31 January 2022 1,187 6 View

Are there any other solvents for PETN (pentaerythritol tetranitrate)...?

Which at the same time are much less miscible with water (than acetone or DMF)... Will be grateful for some quantitative data/references on that.

29 September 2021 3,611 2 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Basis set and input instruction to calculate HOMO and LUMO using Orca for Imidazolium based organic salts?

Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...

09 August 2024 5,444 7 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

Are there any instruments for studying time similar to the way it is in space?

There are a huge number of methods for studying objects in space, according to the senses (and not only). Mechanical, thermal, optical, acoustic, electrical, magnetic, based on particle beams,...

06 August 2024 7,102 0 View

How to convert g/kg Humic acid dose to kg/ha?

I used humic acid at 0.044 g/kg soil in my pot experiment. But finally, I have to recommend kg/ha. Each pot's soil weight was 11 kg. What is the solution?

02 August 2024 7,186 6 View

Is there any Indian Company or Startups, from any universiy or IITS, which manufacture Gas Chromatography instrument , i want to make a custOmized G?

or we can collaborate

01 August 2024 6,705 2 View

How to improve peaks separation in HPLC?

Hi everyone, I'd like to better separate two close peaks coming from a bioconversion sample, I'm currently using a C18 KromaPhase 4,6mm Ø.I. SCHARLAU, particle size (µm): 10, pore size (Å): 100,...

30 July 2024 435 3 View

How to determine method detection limit in an analytical method?

I know the difference between instrumental LOD and method LOD but my query is - in case of any sample whose concentration is zero or not detected by the instrumental LOD, is it possible to get...

24 July 2024 6,592 5 View

How to separate the stereoisomers compond in reaction mixture?

how to separate the organic reaction stereo isomers compounds are separate from the reaction mixture any simple methods are available

23 July 2024 8,025 4 View

Are there any alternatives to PhenoScanner?

I am currently conducting a mendelian randomization study, and I was attempting to use PhenoScanner to look for potential confounders associated with the selected SNPs (any SNPs significantly...

23 July 2024 5,703 0 View