I need any software to determine the atomic and ionic peaks line of emission spectrum of elements ?

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Collaboration on corrosion ?

Would anyone be interested in collaborating on corrosion?

07 July 2024 4,726 2 View

Collaboration on medicinal plants?

Would anyone be interested in collaborating on research focused on the antioxidant and antibacterial activity of medicinal plants?

23 May 2024 6,760 4 View

Evaluation of antioxydant activity?

I evaluated the antioxydant of ethanolic extract by DPPH. I chose a concentration of 1000 ug/ml and then 2000 ug/ml very high concentractions but no yellow color appeared when adding DPPH. Knowing...

25 July 2023 9,886 6 View

Drying plants in a high humidity environment?

Does drying leaves and stems in a high humidity environment influence the bioactive molecules like flavonoids and polyphenols or no?

12 July 2023 5,185 5 View

A question related to extraction?

Hello researchers, I carried out an extraction with methnol of roots and at the end of the extraction a precipitate has formed. Can anyone explain to me if this is normal? Should I analyse this...

15 June 2023 980 2 View

Want to collaborate?

Hello researchers, Who would like to collaborate in extraction and analysis of extracts from plants ?

13 June 2023 9,094 3 View

The extraction procedure from green leaves?

Hello to all researchers How can extract polyphenols from the leaves high in chlorophyll. I conducted an extraction from green leaves, I defatted the leaves with haxane and then extracted them...

02 June 2023 9,847 3 View

Extraction of polyphenols?

Hello, Many researchers reported that to extract polyohenols you need first to remove lipids. I don't know why? Knowing that removing lipids can leads to a loss of polyphenols even if the solvent...

09 May 2023 388 5 View

Does anyone want to collaborate?

does anyone want to collaborate on the optimization of extractino technique for bioactive compounds from a plant ?

25 April 2023 2,328 2 View

Why does the exchange rate change between two different currencies?

01 April 2023 8,390 8 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

Melt curve problem in qPCR?

Do these peaks in the curve indicate primer dimer or non-specific products?

01 August 2024 7,466 0 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

Does it exist some special technique for cutting ceramic membranes for Cross-sectional FESEM images?

Does it exist some special technique for cutting ceramic membranes for Cross-sectional FESEM or SEM images?

25 July 2024 5,482 2 View

What is the future scope of acoustic emission?

17 July 2024 1,510 1 View

What does an additional peak in FTIR between 3100 and 3300 nm affect the quality of the material, benzethonium chloride USP??

I do not know much about FTIR! The material Benzethonium Chloride USP was compared to a reference standard in regards to FTIR, as per the USP testing: Identification B. Infrared absorption (FTIR),...

16 July 2024 6,918 7 View

Convergence criteria not met but ends with normal termination. Could not open the log file in gaussview. How to rectify this problem?

>>>>>>>>>> Convergence criterion not met. SCF Done: E(RB3LYP) = -472.437545326 A.U. after 33 cycles NFock= 32 Conv=0.29D-07 -V/T= 2.2914...

16 July 2024 8,862 2 View

What is wrong with my input file?

im studing gaussian 16 with reading paper about I-131 Metaiodobenzylguanidine in the paper "In a similar vein, nuclear magnetic resonance shielding values were investigated using the widely...

16 July 2024 6,040 4 View

Validated HPLC method for the estimation of the Amphotericin B ?

During the release test of Amphotericin B using 1% Tween 80, i observed three peaks even in the standard. The first peak consistently yielded results around 500%, while the other peaks showed...

08 July 2024 1,330 0 View

In a multi-scale calculation using ORCA, are charges of the QM system updated during each iteration of optimization?

I'm performing multiscale calculations with mechanical embedding in ORCA and I have a question about how atomic charges are handled during geometry optimization and reaction coordinate scans. Are...

06 July 2024 1,360 0 View