Nasim Alijanimamaghani

4 Questions 12 Answers 0 Followers

Questions related from Nasim Alijanimamaghani

Do you have any idea why I am getting these kind of chromatograms for my analytes (LC-MS/MS, mycotoxin, grains)?

I injected 28 mycotoxins individually and for 8 of them I did not get ant peaks and for 6 of them the peak shape is not good enough!

30 April 2024 3,525 5 View

Ion ratio value in LC-MS/MS?

Hi everyone, I analyzed some samples by LC-MS/MS, and I got a pretty good peak for quantifier ion, but the peak intensity for qualifier ion is not good enough so I got "ion ratio" as outlier...

22 February 2024 4,225 12 View

Hi everybody, I calculated LOD, and LOQ by three different methods. Please see files. Which "standard errors" should we use? Intercept? or Regression?

I know that we can also calculated them by Standard deviation of chromatograms, but first I want to calculate them by calibration curve, its standard errors, and slope. I will be happy to hear...

04 January 2023 1,834 2 View

Decrease noise level of chromatograms in LC-MS/MS to improve LOD and LOQ

Hi everyone, I want to ask your opinion about different ways to decrease average noise and standard deviation in our chromatograms which help us to improve selectivity and sensitivity of our...

01 January 1970 9,652 3 View