i want to extract chlorophyll by using methanol for light absorbance determination. what is the proper measurement for the amount of alcohol needed and the amount of leaves required? also, is the beers law suitable for this experiment?
What are the most effective remote sensing techniques and algorithms for detecting and analyzing land use and land cover (LULC) changes in rapidly urbanizing areas, and how do their accuracies and...
11 July 2024 6,695 1 View
My attempt to promote listening was "Using Short-stories". It works fairly but there could be better options. Role of Short Stories in Developing English Listening Skill
09 July 2024 9,078 4 View
I have tried to resolve this issue a little bit, but eager to get your insights and thoughts to make my efforts better. Using Homophones and Homographs in ESL Classrooms
04 July 2024 6,742 3 View
The contribution of "Distance Education" is immense, but still needs a lot of reforms. Universities generally adopt one another ideas and ignore the ideas of world wide scholars, distance...
04 July 2024 2,545 6 View
"Today several adjectival phrases have been used to describe English like ‘International Language’, ‘Lingua-Franca’, ‘Language for Globally Connecting’, ‘Library Language’, ‘Official Language’,...
01 July 2024 8,406 5 View
In educational institutions where English is taught as a second language, only 25% of listening happens in English but rather 75% of listening takes place in other language like Hindi/Urdu/Punjabi...
28 June 2024 6,353 4 View
How do we compare the Rf values of the spots to known standards or literature values to help identify the compounds. How TLC does allows the identification and analysis of the mixture of...
07 June 2024 1,967 5 View
I want to prepare perfusion buffer consisting of: collagenase B (2.5 mg/ml), Dispase II (1.2 U/ml; Roche), Bacillus licheniformis protease 7.5 mg/ml (P5380; Sigma), DNase I (LS002058, 125...
02 May 2024 4,928 0 View
Theoretically, at lower A/C excitation frequencies; say around 100 Hz, penetration of 5-10 mm is achievable in carbon steel (ferromagnetic) material. But, there is literature suggesting that this...
10 March 2024 548 0 View
I have designed 2 primers Now I need to set up the PCR protocol. First: I need to know how much of each primer, H20 and GoTaq® G2 Hot Start Taq Polymerase to put in the mix. We usually put a...
28 February 2024 213 2 View
I need to do some experiment with it in liquid form.
07 August 2024 613 3 View
I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...
03 August 2024 4,725 2 View
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?
01 August 2024 7,504 2 View
Am trying to develop a lesson/lab to determine and compare antioxidant properties of soybeans of various colors. Preference would be low tech and low cost. Any assistance is greatly appreciated.
25 July 2024 7,498 2 View
Kindly share a research paper that explains the effect of Methanol and ethanol treatment on collagen based scaffolds. How it increases porosity and swelling. Kindly help me find a paper. Thank you
24 July 2024 3,937 0 View
Why methanol and sulphuric acid, used in the analysis of polyhydroxyalkanoates (PHA) methyl esters by GC-MS? Additionally, why do we typically use non-polar solvents in GC-MS?
22 July 2024 1,210 2 View
Is it the best optimization ratio based on experiments?
22 July 2024 8,170 0 View
If you don't understand my question let me know
21 July 2024 563 1 View
Is there a method that I can measure alcohol dehydrogenase activity using NAD+ in enzyme extraction from plants?
17 July 2024 935 1 View
I used several solvents and measured the absorbency and determined the total phenolic content, but the results were similar after dropping them on the titration curve; What is the reason, please help
17 July 2024 5,151 5 View