How to prepare the stock solutions for Pharmaceuticals?

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Approximate concentrations are require in compared with the WHO permissible limts

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Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

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Polymer wear calculation?

What is the method for analytically calculating the wear and service life of polymer-polymer sliding pairs?

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How combine yolo with Faster R-CNN?

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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?

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Why Powder XRD is performed after cruhsing a crystal if Single Crystal XRD analysis of the same crystal has been performed already ?

What information we can get from PXRD analysis other than from SCXRD analysis of a crystal ?

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What should be the sample container for the hydrothermal reaction in a microwave reactor at 180 °C for 10 min at the heating rate of 5 °C per minute?

Suggest one of them 1. Teflon-lined stainless steel autoclave: 2. Alumina (Al2O3) ceramic container

30 July 2024 7,326 1 View

Why is it not common to see similar pairs in polymer sliding pairs?

If the pairs are similar, will it reduce the adhesion due to electric charges?

29 July 2024 3,185 2 View

Addition of EDTA during the synthesis of copper nanoparticles to prevent it from being oxidized?

I've attempted to use this method to synthesize copper nanoparticles. Copper nanoparticles can be synthesised using a variety of precursor materials. CuSO4, distilled water, NaOH, and EDTA are...

28 July 2024 8,027 3 View

Can I please ask why my samples from anaerobic bioreactor giving me different size PCR product even after multiple runs?

Hi everyone, I have extracted DNA from a biogas bioreactor using Qiagen kit and prep cDNA library then used this library as template to optimize primers for qPCR (taken from papers). Some of the...

23 July 2024 1,329 5 View

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Approximate concentrations are require in compared with the WHO permissible limts

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

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What is the solvent for 8YSZ nano material?

I need to do some experiment with it in liquid form.

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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.

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Which solvent is better to dissolve with secondary metabolites extracted from fungi?

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03 August 2024 4,725 2 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?

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I need to dissolve stigmasterol for an animal experiment, it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent?

Hello everyone, I need to dissolve stigmasterol for an animal experiment, but it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent for stigmasterol?

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Methyl jasmonate preparation ?

How do I calculate the stock solution to apply 100 uM MeJA for 1000 ml of plant nutrient medium ?

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How to improve peaks separation in HPLC?

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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

D. S. Bhagat

By using standard SOP for particular kind of solution.

Muhammad Zeeshan Qasim

D. S. Bhagat , what if a drug has been prepared in both organic solvent and water as well? Protocols are available for both kinds.

Zeena Zuhair Al Abdali

I think distilled water is preferred

Qi An Ang

I believe DMSO is good for dissolving less polar compounds that may not dissolve well in DI water.