18 Questions 8 Answers 0 Followers
Questions related from Bilal Ahmad
Dear I am working on obesity and writing a review article. I want to add the topic that Why Natural products (Phytochemicals) are more beneficial than synthetic ones? I know that they have less...
03 March 2019 740 2 View
Dear Scientists, I applied the pure crude extracts (without filtration by syringe filter) on colon cancer cell lines and got some good results. When I repeated the experiment with filtration by...
11 November 2017 6,885 0 View
Dear scientists, I lyophilized my plant samples and after lyophilization, for some sample, I got a very good fine powder but for some samples I got a sticky solid form just like gum(Not fine...
07 July 2017 5,919 0 View
I have done the extraction with 90% Aqueous Ethanol of 25 gms of the sample and then filtered and then evaporated the solvent. After this, I did Lypholizations and after lyophilization, I got 0.5,...
07 July 2017 6,791 0 View
Hello dear scientists, I am following the method of L Wei, et al 2015 for the determination of total Triterpenoids contents but there is no information about the mechanism of reactions when we...
05 May 2017 3,727 3 View
hello all, Can any one suggest or send specific articles for quantitative analysis of Triterpenoids (Taraxasterol), by using C18 Column in HPLC-ELSD method ?
03 March 2017 6,873 0 View
hello every one. Can anyone send an article in which method of gradient elution for triterpenoids like taraxasterol and its acetate has been analysed by HPLC by using different gradient...
03 March 2017 9,173 3 View
For HPLC analysis of Phenols and Triterpenoids, what concentration of standards and samples solutions (In mg/ml or microgram /ml) for injection into HPLC should be used? I just want to know about...
02 February 2017 5,429 4 View
Dear Scientists, I am confused now. I did extraction from plant with 90 percent ethanol at 40 degree centigrade in reflux condensor, then i evaporated the ethanol in evaporator and also in vaccum...
02 February 2017 1,966 3 View
Can any one provide me some good articles for the determination of Triterpenoids by HPLC-ELSD methodology?
01 January 2017 329 0 View
is there any method for screening of Total phytosterols OR Triterpenes OR Triterpenoids? Except Salkowoskis and LB reagent methods. your answer would be highly appreciated. ??
07 July 2016 4,457 1 View
I am confused about Qualitative Screening and Quantitaive Screening of Phytochemicals. Besides that i also see Total ABC (Any Chemical) Contents in various articles? So are qualitative screening...
07 July 2016 3,233 2 View
Hello Scientists. In E.Coli if we run 5s, 16s and 23s rRNAs on electrophoresis. Then which one will move faster.
04 April 2016 4,670 0 View
Please help me to understand Sterols, Steroids, Triterpenes,Triterpenoids. Similarities and differences. I am compeletly confused about them.
04 April 2016 2,977 5 View
I am working on phytochemicals extractions. i am a little confused as to how much solvent we should use for the extraction? for example if i have 5 grams of powdered form of a sample then how much...
04 April 2016 1,764 21 View
Phytosterols (taraxasterol)
03 March 2016 638 2 View
Can any send the articles regarding ethical issues abou model organisms and experimental organisms? It would be hight appreciated. Please?
03 March 2016 8,057 2 View
Hello dear Scientists, hope you all will be ok. I have seen in many research articles that for extraction of phytochemicals from any plant, solvents i-e 70% Methanol or 95% Ethanol or any other...
01 January 1970 1,044 5 View
