Hello Dear Scientists? Phytochemicals VS Synthetic Chemials? Which one better and Why?

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...

02 March 2019 693 2 View

Does filteration effects the crude extracts activity?

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...

10 November 2017 6,844 0 View

No title

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,...

06 July 2017 6,745 0 View

Sticky sample after Lypholization

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...

06 July 2017 5,837 0 View

Total Triterpenoid determination.?

04 May 2017 3,628 3 View

Request for articles

hello all, Can any one suggest or send specific articles for quantitative analysis of Triterpenoids (Taraxasterol), by using C18 Column in HPLC-ELSD method ?

02 March 2017 6,830 0 View

Request for Article for (Triterpenoids) taraxasterol and its actate HPLC analysis??

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...

02 March 2017 9,122 3 View

Important Question

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...

01 February 2017 1,921 3 View

Important questions request about HPLC

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...

01 February 2017 5,382 4 View

Hello to all scientists. ?

Can any one provide me some good articles for the determination of Triterpenoids by HPLC-ELSD methodology?

31 December 2016 284 0 View

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 3 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How to determine implicit ontological and epistemological stance?

I am hoping for some guidance and additional reading material that will assist me in determining ontological and epistemological stance when not explicitly detailed within the research. Here is...

26 February 2021 227 5 View

Can I use a protein-devoid condition as my negative control in ELISA?

Hello, I am running a sandwich-type ELISA where I am trying to inhibit a protein-protein interaction using small molecules. For each experiment, I determine my Z' (Z-prime) to determine the...

23 February 2021 7,429 1 View

Can't recognize exact phase and PDF card no of Silicon carbide in XRD?

We have deposited silicon carbide on carbon substrate using one PVD technique. Due to amorphous behavior of SiC at low deposition temperature, we performed heat treatment of those films at...

22 February 2021 2,072 3 View

How to select therorical or conceptual framework for any proposed qualitative research work?

Hi, I am conducting an exploratory research with qualitative in-depth interview approach to understand the impact of COVID_19 in health systems response to burn care in India. Since, this is a...

19 February 2021 4,562 4 View

Does qualitative research using closed and open ended survey and semi structured interviews qualify as triangulation?

I am using qualitative research to look at employee motivation. I will use a closed and open ended survey (for biodata information and general views to motivation) and semi structured interviews...

18 February 2021 436 11 View

How to predict the reaction pathway for electro organic synthesis?

Can anyone recommend some any software/models available that can predict substance reactivities and the reaction yield under a specific set of reaction conditions process and proposing pathways to...

17 February 2021 2,383 3 View

How can I import .sav file into LISREL?

I've just downloaded free trial version of LISREL 10.3 but I got stuck with importing .sav (IBM SPSS 25.) file. I mainly followed the steps of this video...

15 February 2021 752 2 View

I collected qualitative data, but the analysis results are mostly quantitative. What can we call such research, qualitative, quantitative or mixed?

I collected audio data, transcribed them to turn into text data, and then coded them. I have a theory-driven code system established before collecting the data. The text data were then coded using...

14 February 2021 2,130 19 View