Preety Rohilla

10 Questions 26 Answers 0 Followers

Questions related from Preety Rohilla

Suggest some SCOPUS, WoS and UGC listed Journals (Hybrid or subscription based only) for ethnobotany, phytochemistry and pharmacology review articles?

Please suggest some good impact factor journals (IF: 3.0 or above; hybrid or subscription-based only) for review articles related to ethnobotany, photochemistry, and pharmacology. I submitted the...

19 October 2022 8,242 15 View

How to disperse nanoparticles homogenously in aqueous media?

I prepared gold nanoparticles (NPs) via green synthesis. After lyophilization, I got the powdered form of nanoparticles. For characterization i.e. Zetasizer, TEM etc. and to check biological...

08 February 2022 5,345 6 View

Getting higher value of TPC and TFC in chloroform and benzene extract of plant?

I performed TPC and TFC assay for my plant sample in polar and non- polar solvents. In non-polar solvents (chloroform & benzene ) higher value of absorbance is noted. But antioxidant and...

28 October 2021 1,534 3 View

In ABTS assay getting negative absorbance. Is it normal?

I performed ABTS assay for my plant sample and standard ascorbic acid. The absorbance recorded was very low and in some case, even negative values were obtained. The procedure includes: ABTS 7mM...

22 October 2021 1,862 4 View

Total flavonoid content protocol of Quercetin?

I performed an aluminum chloride colorimetric assay for Total flavonoid content calculation. Quercetin was used as standard (Stock 1 mg/ml; dilutions:10-100 ug/ml conc.). The stepwise procedure...

07 October 2021 7,766 8 View

Can I use DMSO to dissolve DPPH for antioxidant assay?

I performed a DPPH assay for plant extract prepared in methanol and aqueous solvent. For the experiment, I dissolve DPPH in DMSO. I prepared a stock solution of 5mg/ml conc. for each extract and...

23 September 2021 2,504 8 View

What is the storage time of nanoparticles synthesized from plants ?

How long we can store the nanoparticles (NPs) synthesized using plant extract? Can we store the NPs solution (containing plant part + metallic salt) as well as dried metallic NPs for use in future...

11 July 2021 8,224 14 View

When we use sodium nitrite in total flavonoid content assay, what would be the color of resulting solution?

I used sodium nitrite, aluminum chloride, and sodium hydroxide for the total flavonoid assay. I performed the experiment with four different extracts (methanol, aqueous, chloroform, and benzene)...

15 April 2021 9,776 6 View

Which one is better standard compound (Quercetin or Rutin) for measuring total flavonoid content?

Can we use quercetin as the standard for flavonoid assay?

15 April 2021 5,660 7 View

Why the absorbance got increased after increasing concentration of ascorbic acid in hydrogen peroxide scavenging assay ?

I performed hydrogen peroxide radical scavenging assay. After increasing the concentration of sample, absorbance was also increased. Even the absorbance of control is lower than the sample. If...

26 March 2021 7,872 11 View