Timeline for Methods used to compare two spectra in order to determine the effects of irradiation of sample
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| Aug 18, 2020 at 11:39 | vote | accept | Gianni D'Adova | ||
| Aug 13, 2020 at 5:53 | history | edited | andselisk♦ | CC BY-SA 4.0 |
added 285 characters in body; edited tags; edited title
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| Aug 13, 2020 at 0:25 | answer | added | Buttonwood | timeline score: 1 | |
| Aug 12, 2020 at 11:17 | comment | added | Gianni D'Adova | @Buttonwood I just don't know where to look at online, there must have been some studies where the sample is studied for irradiation. What could I do, please help! | |
| Aug 12, 2020 at 10:53 | comment | added | Gianni D'Adova | @Buttonwood 1) To be precise, the first column stands for wavenumber. #2 At the moment I don't have multiple recordings of the same sample. But if I have data as it is now, what can I possibly do to gauge the differences between spectra and whether they are significant? Can I do it in R? | |
| Aug 12, 2020 at 10:12 | comment | added | Buttonwood | Equally, especially if you applied a base line correction, check the variation of the transmission / absorbance data while processing the raw data (the interferogram you should keep) for one and the same recording, processed multiple times, too. If you do it visually by mouse click «from shoulder to shoulder» of the absorption bands displayed, variations may be large. | |
| Aug 12, 2020 at 10:00 | comment | added | Buttonwood | Currently, your question reads like this: 1) the wavelengths are assumed to be correct (checked e.g. against a reference), 2) with sample #1, you recorded $x_1$ in function of the wavelength, 3) irradiated the sample, 4) then recorded $y_1$. You then repeated 2 to 4 for sample #2. Do you have multiple recordings of $x_1$ and $y_1$ to estimate their individual (and wavelength dependent) standard deviation? Because then you test per wavelength if / where the recording were significantly different (per wavelength) with a significance level of x% for sample #1. | |
| Aug 12, 2020 at 9:43 | review | First posts | |||
| Aug 12, 2020 at 15:31 | |||||
| Aug 12, 2020 at 9:38 | history | asked | Gianni D'Adova | CC BY-SA 4.0 |