Exraction of Phytosterols in vegetable oil and analyzing using HPLC, LCMS or Gas chromatography ?

More Mehdi Safta's questions See All

Hi there, someone has the SeinFit software for windows because I cannot download it?

DOS version.

29 July 2024 6,064 1 View

In a multi-scale calculation using ORCA, are charges of the QM system updated during each iteration of optimization?

I'm performing multiscale calculations with mechanical embedding in ORCA and I have a question about how atomic charges are handled during geometry optimization and reaction coordinate scans. Are...

06 July 2024 1,360 0 View

How can preparation concentration ppm from Essential oils for plant?

We are studying about essential oil of some plant again of antimicrobial, we want use concentration by ppm, how can preparation this concentration and which solvent we are use. Thank you for any...

28 May 2024 2,085 3 View

How to become a good reviewer for a scientific journal?

It is not only the responsibility of the authors but also the reviewers to assess the manuscript appropriately and help in improving the quality of the finished article. A good reviewer not only...

11 May 2024 4,858 7 View

Can dating detrital zircon in thin sections affect the representativeness of dates?

Dear Geology Community, I am currently researching the dating of detrital zircon in metasediments. Due to the small size of my samples, traditional mineral separation methods may not yield a...

09 May 2024 337 7 View

Modeling train induced vibration in Abaqus?

I want to study the effects of train induced vibrations on nearby structures. For this purpose I used this paper :Finite element model of ballasted railway with infinite boun... I modeled the...

24 April 2024 2,687 6 View

Seeking Co-Guide for my Ph. D. Degree, Are you willing or can you refer?

Dear ResearchGate Community Friends, Seeking a co-guide for my Ph. D. Degree. Concerning the above-mentioned subject, I wish to inform you that I am Mr. Mir Mehdi Ali Jafri, doing my Ph. D....

16 April 2024 3,572 0 View

What articles do we have on the use of body language among politicians for policy conception?

need the latest articles on the powerful use of body language among politicians for policy conception and how politicians leverage body language to influence public opinion and gain support.

10 March 2024 5,036 2 View

Grammarly Premium account?

"I am seeking information on how to access Grammarly Premium for free, as purchasing and making payments from within Iran is not feasible. Is there a way for someone to share their account with me?"

05 March 2024 6,873 0 View

Can anyone help me with PPG signal processing? you recommend a trainer, the trainer will be paid for online trainings?

Can anyone help me with PPG signal processing? or recommend a trainer, the trainer will be paid for online training....

29 February 2024 3,578 1 View

How can major oxides determined by ICP-MS/ES be normalized to 100% volatile free? How does this connect with LOI?

I am analyzing cherts from different sources found within one specific geologic formation using ICP-MS/ES. My committee was asking this question about my analysis. I was not sure how to answer this

05 August 2024 7,902 3 View

Usage of internal standards in LC-MS/MS analysis?

Have you ever seen a LC-MS/MS method uses both internal standards and external standards (in matrix matching purpose) but the concentrations of internal standards are outside the calibration curve...

05 August 2024 3,084 6 View

I need to dissolve stigmasterol for an animal experiment, it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent?

Hello everyone, I need to dissolve stigmasterol for an animal experiment, but it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent for stigmasterol?

01 August 2024 7,504 2 View

How to treat monolayer culture cell line with essential oil?

Hi all, may I ask you for advice about treating monolayer culture cell line with essential oil. Due to the hydrophobic character of the oil, I am concerning how can it equally affect to all the...

31 July 2024 5,301 2 View

How to select relevant metabolites from multiple annotations ?

I am using the Polyomics Integrated Metabolomics Pipeline (PiMP) for metabolite feature analysis. After annotating my data, I have encountered cases where multiple potential metabolites are...

24 July 2024 5,789 0 View

How to ask to correct the Incorrect Claim regarding the writer of Article that I was involved in?

Dear sir/Madam, I am Parinaz Parsa the first writer of article "Optimisation of probiotic yoghurt production enriched with phytosterols" and understand that one person is mentioned as writer which...

14 July 2024 9,579 2 View

Liposome Preparation using Heating Method - Why does my liposome suspension form aggregates?

Hello everyone, I am trying to encapsulate an essential oil in the liposomes using the heating method and encountering some issues. I am following the protocol described below, but my solution...

10 July 2024 4,083 3 View

MS/MS spectrum with 5 Da difference in m/z value?

Hi everyone, We experienced a strange pattern in some spectra coming from HRMS/MS analysis. In particular, in the MS1 spectrum a base peak at m/z=M and a smaller peak at m/z=M+5Da appear, but in...

08 July 2024 3,631 4 View

Increasing Area Ratio on Quality control Standard on LCMS ?

Hello everyone. During my analyses on LC MSMS, the area ratio (Standard Area/Isotopically labelled Standard Area) increases with time for the quality control point. I'm having trouble explaining...

08 July 2024 3,150 2 View

Can anybody explain the term "Peak- Rating" in data obtained from LC/MS?

Data Acquisition detected more than 65000 metabolites with area maximum, RT-value and peak-rating. What is the significance of Peak Rating?

07 July 2024 6,643 2 View