Does anybody know the systematic procedure to calibrate HPLC ?

More Kalam RAJ Kumar's questions See All

What is the relationship between the threshold voltage and the device's noise performance, particularly in terms of flicker noise and thermal noise?

The threshold voltage (Vth) of a MOS device plays a crucial role for its operation. At the same time, noise is an intrinsic factor. So how noise (flicker or thermal) change with the change in...

29 July 2024 3,246 0 View

What is the solvent system required to run tlc for calixarenes?

If you don't understand my question let me know

21 July 2024 563 1 View

Sample size for qualitative study?

I am working on scale development in behavioral finance by undertaking a mixed-method approach using the exploratory sequential design. The phenomenon has diverse meanings in existing literature...

20 July 2024 9,153 11 View

How to convert available phosphorus to total phosphorus?

I need to convert Available phosphorus into total phosphorus

18 July 2024 6,799 3 View

Can it is possible to find the cleaved sequence when a protein cleaved by a heamaglutanin protease (HA/P) by any bioinformatics tools?

Bioinformatics tools like peptide cutter

15 July 2024 6,453 1 View

Can we progress towards defining obesity based on body fat content?

The burden of obesity is enormous. The greater challenge lies in accurately diagnosing obesity at the right time, reflecting the true increase in visceral fat. BMI may not accurately represent...

14 July 2024 8,771 4 View

How does high humidity affect the growth and development of crops?

10 July 2024 7,258 20 View

In what ways does high humidity impact the pollination process in agricultural plants?

10 July 2024 7,513 13 View

Do the parts of the body that are situated at a longer distance from the central nervous system have the least control & coordination comparatively?

What would be the effect of distance from CNC cum Heart on the structure and function of a particular part of the human body? Do short people have evolutionary advantages to control body parts in...

09 July 2024 2,052 3 View

I have need a LPBF/SLM model on comsol multiphysics ?

In this model clearly understanding how to active one layer to another layer and how to add powder material properties step by step.

08 July 2024 6,147 0 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

Robin Joshi

Check parameters such as flow rate, PDA lamp energy etc for calibration. Explore google you will get some systemetic methods.

Małgorzata Jaworska

If you mean performance qualification please visit this page:

http://www.edqm.eu/site/quality-management-guidelines-86.html

and look for HPLC guideline