John Githaiga

5 Questions 11 Answers 0 Followers

Questions related from John Githaiga

Any help on pure basic biochemical components?

I need to quantify biochemical changes in my biological samples and I am targeting to use pure biochemicals which include the following: glycogen, DNA, RNA, actin, albumin, triolein and...

08 September 2016 4,995 3 View

What raman shift range is acceptable?

suppose i am looking for a Raman peak 1450 per cm in my spectra data obtained from biological sample. However, in spite of applying the same instrumental optimal parameters (e.g. exposure times,...

12 May 2016 3,181 6 View

Does Raman spectroscopy have capability of detecting trace chemical biomarkers on any cancerous sample?

And what criteria / ranges, would you apply in order to categorize (chemical) biomarkers as 'trace' in definition. Secondly, what would be probable improvements of Raman set up, in order to...

22 March 2016 6,982 3 View

Why am I obtaining a broad Raman background signal around 600cm-1, upon using IR polished calcium fluoride substrates on 785nm laser?

Why am I obtaining a broad Raman background signal around 600cm-1, upon using an IR polished calcium fluoride substrate on 785 nm laser? I am also obtaining a common sharp peak at around 1649cm-1...

10 December 2015 1,882 9 View

Am I correctly preprocessing this raman data?

Hi everyone, Can someone explain to me whether i am following the right approach by doing the following: First i have denoised all Raman spectrum by using Daubechies wavelet (N=5) transform, and...

08 September 2014 4,229 3 View