How effective is a gradient vs. isocratic HPLC method in separating and quantifying gingerol and shogaol compounds in Alepak?

08 July 2025 0 2K Report

More Shrikrishna Baokar's questions See All

Is it possible to have 1 control group and 2 expertimental groups in quasi-experimental research?

Hi, I plan to conduct research with 3 groups of players randomly assigned. They are assigned based on their level of play cricket viz state level One control group = traditional cricket...

09 January 2024 2,377 0 View

How to calculate Total phenolic content of essential oil (Clove bud)?

I need a help in calculating TPC of Clove bud oil (1.04 g/ml). which was diluted to get the concentration of 1mg/ml, from that 100 micro liter was taken for assay, final volume was made upto 10 ml...

20 January 2020 2,892 5 View

What are the parameters studied on disclosure of accounting policies?

In the light of accounting standard can we test these parameters for the purpose of studying disclosure of accounting policies?

17 October 2013 3,084 13 View

What is criteria to decide whether Raman modes are Ag, Bg or Eg?

Whenever we are deciding Raman active modes we refer to earlier articles. But, I am not getting why one peak at some position has name such as Ag or Bg or Eg. Also how to decide it is TA, LA, TO...

09 July 2013 9,234 9 View

Which type of compound does lamda max of 218 indicate in a uv-vis spectrum of a partially purified compound through column and TLC?

A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...

11 August 2024 9,801 2 View

Can you connect an HPLC to a Mass Spec only at a certain time point?

Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...

11 August 2024 8,141 3 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

Can I use a HisTRAP column for affinity chromatography?

I'm working on selecting antibodies against a recombinant protein that has a His-tag. My idea is to first bind the recombinant protein to a HisTRAP column and then use this column for an affinity...

07 August 2024 505 3 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

Why is electronic energy 0.000 for liquid crystal compounds and is invariable with temperature in Guassian 09 software?

Are there any suggestions or insights you can provide to help address this problem

06 August 2024 1,443 2 View

RNA later for the preservation of RNA in fecal samples at room temperature for one day (37°C)?

I am planning to collect human fecal samples for metatranscriptomic analysis using MGI. These samples are from indigenous people living in a region with high temperatures. I will have access to a...

06 August 2024 1,367 3 View

How can we use mobile apps for improving students' academic performance?

Mobile apps can be a powerful tool for enhancing academic performance, how can we use mobile apps for improving academic performance

04 August 2024 9,492 0 View

Why is TLC not a form of partition chromatography?

Why is TLC not a form of partition chromatography and paper chromatography not a form of absorption chromatography?

03 August 2024 7,035 3 View

Is there any Indian Company or Startups, from any universiy or IITS, which manufacture Gas Chromatography instrument , i want to make a custOmized G?

or we can collaborate

01 August 2024 6,705 2 View