| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Another draft of the paper research note: I also made a Post-It notepad of these on Zazzle.com: http://www.zazzle.com/public_lab_paper_research..." | Read more » | over 10 years ago | |||
| warren | ":-/ doesn't look good. I think without white balancing it, we're going to have a hard time using this cam. http://infragram.org/i/53f266c40ab503..." | Read more » | over 10 years ago | |||
| warren | "UV laser through a fish oil pill tested here: http://publiclab.org/notes/warren/08-14-2014/sample-container-search#c10038 " | Read more » | over 10 years ago | |||
| warren | "Just mention it because the pill is filled with liquid, and reminded me of your straws. " | Read more » | over 10 years ago | |||
| warren | "Amy, have you tried shining a laser through those? I had the odd experience today of finding a fish oil pill, and look what happens when you shine ..." | Read more » | over 10 years ago | |||
| warren | "I'm doing a test today putting one bottle of 3 identically prepared Onta #1 samples of crude in mineral oil in the freezer, to see if temperature a..." | Read more » | over 10 years ago | |||
| warren | "Great start -- what about paper research notes? I was thinking it'd be neat to show the four tables in a diagram, kind of: " | Read more » | over 10 years ago | |||
| warren | "Very true, re: alignment -- is there any way to do a tiny tiny amount like a nanodrop while keeping the (possibly toxic) sample material sealed som..." | Read more » | over 10 years ago | |||
| warren | "Well, ideally, much smaller would be great -- i think the ones you've found are mostly 15ml?, but the reality may be that nail polish bottles just ..." | Read more » | over 10 years ago | |||
| warren | "Maybe -- the paper describes different kinds of filtering, one from when the laser enters the liquid, one from when the fluorescence exits the liqu..." | Read more » | over 10 years ago | |||
| warren | "OK, links to some citations. I'm visiting an MIT building now so it's hard to tell which are open access; i'll try to check on this later: Jiji et..." | Read more » | over 10 years ago | |||
| warren | "The orig bottles were basically square, but not very precise -- sort of that wavy crude surface from molded glass. But I have a sense that there's ..." | Read more » | over 10 years ago | |||
| warren | "Interesting -- specific PAHs are (as we've seen in other literature) out of the 400-1000nm range of our device: monoaromatic compounds (benzene, t..." | Read more » | over 10 years ago | |||
| warren | "p56 mentions "polycyclic aromatic hydrocarbons (PAHs), pesticides, environmental hormones" as contaminants that can be detected with fluorescence s..." | Read more » | over 10 years ago | |||
| warren | "So the Carstea paper is great for one particular reason - we've suspected that organic material could fluoresce and potentially interfere with our ..." | Read more » | over 10 years ago | |||
| warren | "Aha! Line 7 of p54 says: The Raman scatter line can be used to check for instrument stability and to quantify the degree of contamination from a w..." | Read more » | over 10 years ago | |||
| warren | "p.51 has a discussion of pH and salinity on spectra: "intensities increase with higher pH until 10, as observed by Reynolds and Ahmad (1995) at raw..." | Read more » | over 10 years ago | |||
| warren | "Page 50 also discusses filtering effects -- where the color of the sample itself (yellow, brown) can filter out some wavelengths of fluorescence. T..." | Read more » | over 10 years ago | |||
| warren | "Ooh, 36 articles which cite this one: http://scholar.google.com/scholar?cites=12262006161023041861&as_sdt=40000005&sciodt=0,22&hl=en t..." | Read more » | over 10 years ago | |||
| warren | " oil-testing-kit-frame-0.1.pdf " | Read more » | over 10 years ago | |||
| warren | " Bench flange and integration concepts. " | Read more » | over 10 years ago | |||
| warren | "I like the idea that if there are 4 tables, four different organizers can sort of "staff" the tables, focusing on the parts they know best. " | Read more » | over 10 years ago | |||
| warren | "Unexpected yes -- it was for some reason much harder to get light into the webcam! But very easy on a smartphone. We're working a bit on this probl..." | Read more » | over 10 years ago | |||
| warren | "Wheeee! Cardboard fits like a glove! It needs a couple tweaks for the thickness, longer tabs and for loss due to folding on the angled piece. I als..." | Read more » | over 10 years ago |