spectrometry-challenge
spectrometry-challenge


Author Comment Last activity Moderation
PivotalMayfair1 "Whether for fitness or fun, a brisk walk on a cold, crisp day can be exhilarating and refreshing. It can also be a direct route to frozen toes, hyp..." | Read more » about 3 years ago
theuntoldrecipe "I m always learn ur post " | Read more » about 3 years ago
liz "Thank you @David_Uwi " | Read more » about 3 years ago
liz "Thank you so much for writing out this question -- as i am not from the commercial world, it's helpful for me to understand where different people ..." | Read more » about 3 years ago
Ag8n "You will need to tweak the method a little more, with volumes amounts of material added, etc. This should be viable for ammonium nitrate based ma..." | Read more » about 3 years ago
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Ag8n "Make sure you look for the liquid sample test ammonia kit, if interested. This is the one with a test tube and two liquids to add. The wrong kind..." | Read more » over 3 years ago
Ag8n "Re:the ammonia problem- Amazon sells api ammonia test kits for fish tanks. The cost is under $7 for 130 tests ( be suspicious of this number, thou..." | Read more » over 3 years ago
Ag8n "The usual way to solve the ammonium nitrate problem is to form a complex (that does absorb in the visible) and analyze the complex. Off the top of..." | Read more » over 3 years ago
david_uwi "Yes you're quite correct in an ideal world we would be using absorbance (Log of transmission) and subtracting a blank. There is also a problem with..." | Read more » over 3 years ago
Ag8n "Ok guys,I'm used to commercial instruments. So these scans always throw me. First, if you are trying to compare concentration in the commercial w..." | Read more » over 3 years ago
georgiatestprep "Interesting to see such solutions and question too. big clap. " | Read more » over 3 years ago
akhila "Thank you so much for your response, it was really helpful! " | Read more » over 3 years ago
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warren "Hi, @akhila - this is a really cool experiment you're doing! OK, i think i may have some suggestions that could help; i think you may have a doub..." | Read more » over 3 years ago
kgradow1 "@kgradow1 awards a barnstar to akhila for their awesome contribution! " | Read more » over 3 years ago
kgradow1 "That's interesting. I wonder why there is such a difference in the gradient for the nitrogen water. Also interesting that the contaminated milk s..." | Read more » over 3 years ago
asnow "Thank you @warren ! " | Read more » almost 6 years ago
warren "@asnow - here's some for 0.09mm ! spectrometer-slits-letter-0.09.pdf spectrometer-slits-letter-0.09.svg " | Read more » almost 6 years ago
Ag8n "Thanks! Give me a couple of days and I'll email you a more detailed description. The help is appreciated! " | Read more » about 6 years ago
stevie "Woah interesting question! can you give me some context or background for it? I'll volunteer to do some hunting for someone who can help answer :) " | Read more » about 6 years ago
warren "And here are the ones we've reformatted for efficient printing at letter size! spectrometer-slits-letter-0.18.pdf spectrometer-slits-letter-0.18..." | Read more » about 6 years ago
Ag8n "A partial answer. Each block of analyzers is heated to 37.0 C . They do not use a spectrometer. Instead, each cell in the analyzers has a led (a..." | Read more » about 6 years ago
warren "I believe this is the 2016 full PDF we printed from -- i did a new layout more recently that was just for one size, but this is the full-sized shee..." | Read more » about 6 years ago