I need to calculated the concentration of the compound that matched the same peak of the Std.

More Dr Arpna Ratnakar's questions See All

Are you looking for research collaboration ?

we have few papers ready for submission, and we need one co-author for each article who can pay article fee. Interested authors may text here or contact me on my following email id [email protected]

29 July 2024 6,626 0 View

Dear researchers. pl help how to plot jablonski energy level graph and magnetic hysteresis curve in origin?

through origin software

17 July 2024 4,991 0 View

How is artificial intelligence being utilized to enhance the diagnosis and treatment of sleep apnea?

AI has the potential to improve the management of sleep apnea by personalizing treatment, enhancing diagnostic accuracy, and advancing our understanding of the condition.

03 July 2024 9,393 2 View

Action research design is Quantitative Studies or Qualitative Studies?

14 June 2024 1,684 1 View

Offer or collaboration for book publications?

Dear Profs/ Scientist, if any one is interested or have plan to publish a good quality books/ book edited , I can contribute/help such type of research works . My research...

06 June 2024 5,932 2 View

How to draw SeDeM diagram for preformulation study of drug and excipients?

What is SeDeM expert tool? Is it in silico tool and how to draw the SeDeM diagram for preformulation study? Kindly suggest.

06 June 2024 4,408 0 View

Call of book chapter ?

CALL FOR BOOK CHAPTERS (No Publication Fee) Scrivener Publishing/wiley Dear Prof,Scientist/ experts, Greetings. We are editing the book entitled " FET Devices: Post CMOS Theory and Applications...

28 May 2024 9,284 0 View

Is there a Raising awareness of indigenous medicine among metropolitans?

The growing interest in holistic health practices is leading to increased awareness of indigenous medicine among metropolitan populations. While challenges exist in terms of access and cultural...

09 May 2024 7,041 1 View

Why many times RG is sending email? Is this person is co author or published article? Many times it is been sending.?

Pls dont send many times email is this person is co author or published article? Many times it is been sending. Pls stop it ok

06 May 2024 3,964 3 View

What is the protocol to maintain 260/280 and 260/230 and to get pure DNA from ruminant faeces using Dneasy PowerSoil pro Kit?

I used the Dneasy PowerSoil Pro Kit. But I didn't get a good ratio of 260/280 and 260/230 and didn't get a good band after electrophoresis. I maintain all procedures according to the...

29 April 2024 1,242 4 View

Why DLS shows small STD than SEM while doing the NPs size analysis?

I did DLS size measurement with 10 acquisition got average size is 120 nm and STD is 10 while SEM gave me 100 nm and STD is 35 with exactly 1000 NPs. I am sure about the size of DLS should be...

10 June 2024 7,819 5 View

How to prevent co-precipitation of petide drugs spiked in plasma (or PK samples) during extraction process?

These days, I am working on peptides. While preparing the standard, I have been facing no detection of peptides in UPLCMSMS analysis. Actual case: Case 1: Water + peptide STD working solution +...

04 June 2024 6,453 0 View

Different species, same matrix, can I make different way to make STD and QC samples during method development and validation?

There days I was facing one challenge when doing MD and MV. I need to use rat and pig' plasma as matrix. I used to spike the solvent with different concentrations into the plasma to make STD and...

01 April 2024 3,766 0 View

Help UV reading for PS20?

Hello,Goal is finding concentration of PS20, prepared std curve concentrations of , 25,50,100,150 and 200 ug/mL , after methylene chloride extraction of PS20, and reading at UV spectromete at...

13 March 2024 8,332 0 View

Will AI revolutionize the way we design our business models?

I'm currently researching about the possible outcomes of implementing AI in the business model canvas framework. Considering it being such an amazing & simple tool to view & understand the...

04 February 2024 5,334 4 View

What does it mean if I have STD signals from a protein sample without a ligand?

While performing STD screening I noticed that I have signals in my difference spectras, that are constant accross all samples, also if there is no ligand and only protein. The protein was...

18 January 2024 6,932 2 View

Is Osterwalder business model canvas a scientific method ? if i have to use it with case study method, how should i proceed ?

????

14 July 2023 7,098 3 View

What are the tools and platforms you use to design or illustrate figures in your research papers?

Platforms like Biorender and Canva websites

24 April 2023 9,270 5 View

How to calculate "Standard deviation (STD)" by CDO?

Like, I am having "observed data (obs.nc) and model data (model.nc)". Inside the file have monthly averaged wind speed and the duration of data is 32 years. As a new user, I do not know how to...

26 July 2022 8,108 1 View

How to calculate (IoA, R, RMSE, MEAN, STD, MAE) by CDO?

How to calculate (IoA, R, RMSE, MEAN, STD, MAE) by CDO. I have two data set simulations and observations. 1- sim.nc 2- obc.nc 1- Index of agreement (IoA) 2- correlation coefficient (R) 3-...

20 July 2022 3,409 2 View