spectroscopy
spectroscopy


Author Comment Last activity Moderation
Suiris "Hi Ernie, Thanks for the great advice and information. To be honest I am completely new to te spectrometer hobby and most of what you wrote baffles..." | Read more » over 10 years ago
drabanus "One other test to characterize the stability of your spectrometer is to just repeat identical measurements after a certain time span, say minutes, ..." | Read more » over 10 years ago
Ernie "Some typo's in my previous post: To normalize your sample spectrum, you will want (delete "you") to divide... Use an (delete "sample") empty bottle..." | Read more » over 10 years ago
Ernie "I hope your system is mechanically stable so as to get reproducible spectra. With regard to the illumination spectrum (the LED), it is not truly w..." | Read more » over 10 years ago
Suiris "I am using a Canon IXUS 120 IS for taking pictures, then I cut out the spectrum from the black background, paste it as a new image and upload it t..." | Read more » over 10 years ago
danbeavers "OK then I would like to know about your work flow. Are you using a camera attached to your computer or are you taking a picture and then processing..." | Read more » over 10 years ago
Suiris "Thanks! Her name is Fia and she is six years old :) " | Read more » over 10 years ago
Suiris "I noticed the shift too danbeavers. My thoughts are that when I cut out the spectrum from my image and pasted it as a new image I wasn´t carefull w..." | Read more » over 10 years ago
danbeavers "I wonder about the peaks appearing to shift between different exposures. Looking at the left most peak the filtered 8 second exposure is to the ri..." | Read more » over 10 years ago
danbeavers "Really great job. I especially like the cat with yellow and blue eyes! " | Read more » over 10 years ago
Suiris "Boiling the samples down to half their volume is a great idea! Will try that next time and see if there are any volatile contaminants. " | Read more » over 10 years ago
Suiris "Hi cfastie. Thanks! The water I tested came from the faucet in Stockholm, Sweden. The water treating plants here have a hard time filtrating medici..." | Read more » over 10 years ago
cfastie "Excellent test. What do you think is in your water? Particulate matter? Or something dissolved, like a salt? Either way, if you boiled some down to..." | Read more » over 10 years ago
Suiris "https://spectralworkbench.org/analyze/spectrum/10457 " | Read more » over 10 years ago
warren "Cool -- can you post a link? " | Read more » over 10 years ago
Suiris "Ok, finally figure it out Warren, I uploaded the image to spectralWorkbench without any distortion. " | Read more » over 10 years ago
Suiris "Hi Warren, Thanks for the kind comment. I havn´t uploaded it yet, when I upload my spectral images somehow they get strangely comressed and the lin..." | Read more » over 10 years ago
warren "Wow, that is a gorgeous spectrum! Have you uploaded it to Spectral Workbench yet? I'd love to see a graph. " | Read more » over 10 years ago
Suiris "Thanks cfastie, I still think I can do a better job though, getting the focus and resolution even better. Glad to see the line near 538 nm line app..." | Read more » over 10 years ago
cfastie "Hi Martin, That's a beautiful spectrum. You obviously got everything lined up perfectly. I don't know about the extra line near 405 nm because my c..." | Read more » over 10 years ago
sonofaquark "yes. i signed up with the pseudo because i have had trolls bug me in online forums but i doubt that will happen here. I changed the name to bob in ..." | Read more » about 11 years ago
warren "Hear, hear! Are you involved in the pesticide detection discussion on the list? https://groups.google.com/forum/?fromgroups=#!searchin/plots-spect..." | Read more » about 11 years ago
warren "Sweet! We need to build out our "how to do spectral analysis" wiki pages soon. " | Read more » about 11 years ago
mathew "awesome! great iconography- I love the "agitate lines" " | Read more » about 11 years ago