How to extract plant compounds using column chromatography?

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Is rhodamine B can be used to prepare chlorophyll ‘a’ concentration?

I want to measure spectra of Chlorophyll ‘a’ in the lab , Is rhodamine B can be used to prepare chlorophyll ‘a’ concentration with the aim to measure spectra in lab using spectrophotometer?

14 April 2024 7,550 0 View

Why reflectance is greater than 1 in some cases?

I prepared different concentrations of chl-a using Rhodamine B (CHClN₂O₃) as indicator, my aim is to measure the spectra for each concentration trying to find relationship between them, the...

19 March 2024 2,147 0 View

How to handle 'Section Not Handled at line 10' error in fluent while using the chemkin-cfd solver?

Has anyone encountered this error before: 'Section Not Handled at line 10' while importing a surface mechanism while having the chemkin-cfd solver selected? Once I get this error I am not able to...

10 August 2023 7,645 0 View

How to determine reaction rate for surface reactions?

Assuming reactions S1 to S4 in the image. How can I determine the reaction rate in mol/m2.s for the site species with the given Arrhenius parameters? Cs' and Cs-H are site species on the...

26 July 2023 3,647 1 View

What are the standard dimensions of coaxial SMA probe feed for microstrip patch antenna?

HFSS, microstrip patch antenna

23 March 2023 8,255 1 View

Can any one suggest topic on research on arm-based processors used in server?

I am researching arm-based processors in the data center can anyone suggest what the approach is to start and build the base on my topic

05 February 2023 5,923 1 View

How to find the geometric mean and geometric variance from lognormal particle size distribution?

Hi, I need to find the geometric mean and variance from lognormal particle size distribution in a pipe. I have 6 different curves at different locations of a pipe. How do I find the geometric...

21 October 2022 9,713 3 View

What is the best simulator for NOC (Network on Chip) in multi-core system that supports cached memory?

I want to simulate Crossbar NoC with embedded caches.

18 April 2018 3,259 2 View

Hello,can anyone suggest how to detect a face in a thermal image using head curve geometry?

Head Curve Geometry,Matlab

23 May 2017 4,425 0 View

Indications of a pilot study

If I need to use certain drug in my study, the dose and duration for this drug in previous studies showed positive effects in 7 days, but I need to use it for 10 days, no reference for this...

02 April 2017 360 1 View

Is there a problem with my RNA pellet?

Hello, I am currently having problems with RNA extraction. I am using mouse liver (C57BL6J), and I have extracted RNA from mouse liver before. Before this experiment, my final RNA pellets were...

11 August 2024 7,082 3 View

RNA Extraction Using Hot Borate Method No Longer Working?

I've been performing RNA extraction on cotton petiole tissue for a few months now using the method described in the following paper, a derivative of the typical hot borate method...

08 August 2024 9,882 2 View

The Bigger You Are, the Harder You Fall (some lessons from Dinosaurs)?

Evolutionary fitness is based on an organism’s ability to adapt rapidly to changing environmental circumstances. Large-bodied mammals have been equipped with large brains (and hence a high...

06 August 2024 4,849 2 View

Are air moisture harvesting technologies effective in combating desertification?

Air moisture harvesting Air water collection devices

06 August 2024 5,473 2 View

Low-yield gel extraction problem?

I am having an issue with my gel image where my PCR product is not appearing very bright on the gel. When I perform gel extraction, the A260/280 purity value is very low. I used the Qiagen gel...

05 August 2024 9,798 3 View

Do you have good tips for seaweed tissue preservation in the field for post RNA extraction?

I will be with my students collecting seaweed samples in a marine farm and later we will process this tissue for RNA isolation and further sequencing. Does anyone have tips on how to collect the...

04 August 2024 501 2 View

The question is how to use Wavenet transform?

HOW CAN I WRITE A CODE TO USE THE WAVENET TRANSFORM AS A FEATURE EXTRACTION METHOD INSTEAD OF DWT IN MATLAB?

03 August 2024 7,829 0 View

State of art in natural disasters?

Are increasing the costs of disasters in the affected countries.

01 August 2024 1,794 2 View

How can I get my Granzyme B flow cytometry stain to be consistent?

I have used PE and PE-Dazzle 594 fluorochromes and have managed to get NK cells to properly show GranzymeB expression after 4 hr PMA/ionomycin stimulaton, but for some reason my CD8 cells in the...

01 August 2024 7,677 2 View

Some new emerging problems on application of RL for scheduling in IoT networks?

I have seen plenty of existing works on applied Reinforcement Learning (RL) policies for optimized scheduling in IoT networks including Q-learning, DQNs, and the newer ones including PPO for...

01 August 2024 8,754 2 View

Arvind Singh

Please have a look at these useful researchgate links.

https://www.researchgate.net/post/Column_chromatography_separation_of_plant_compounds2

https://www.researchgate.net/post/How_can_I_isolate_a_purified_compound_from_the_plants_extract

Ali hussien Amteghy

my dear,this file maybe help you

Subir Bandyopadhyay

Dear Pushpak,

Dr. Tapan Seal of our institution works on these aspects. If you like you can contact him.