| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Bronwen | " I really like the Awesome Foundation! Groups or individuals can apply for $1000 grants to support a project. There are regional and topic-based ch..." | Read more » | over 5 years ago | |||
| falbriard | " @Ag8n , thanks so much for support and answers. Meanwhile I also found a summary of reagents and methods based on UV/VIS spectrophotometry [ http..." | Read more » | over 5 years ago | |||
| Ag8n | " You might want to look into ANDalyze. They use a new technology based on DNA for heavy metal analysis in water samples. I'd need to see validati..." | Read more » | over 5 years ago | |||
| Ag8n | " First off, spectrometers are much more common than spectrophotometers, these days. And cheaper too. T he method you referenced relies heavily on..." | Read more » | over 5 years ago | |||
| Ag8n | " I've used a version of this method. We used it for lead and just for visual comparison. There was a link for it but it wouldn't work. It was th..." | Read more » | over 5 years ago | |||
| Ag8n | " I'm downloading it now. Give me a day or two to go through it. Thanks! " | Read more » | over 5 years ago | |||
| falbriard | " Checking several chemical measurement processes, I found an active reagent that applies, it is named: "Diphenylthiocarbazone (or Dithizone)". It ..." | Read more » | over 5 years ago | |||
| Arsath | " Hi, nice question we can't say exactly how long it will last it depends upon the size and material of the balloon. you can refill the cylinder or ..." | Read more » | over 5 years ago | |||
| falbriard | " Here a software oriented approach. The following open source sample in Python language was developed for the blue & golden dress challenge, it..." | Read more » | over 5 years ago | |||
| Ag8n | " You might be able to find some thing. Let's take it step by step. First, the only one of those metals that has any color in the Vis is chromium. ..." | Read more » | over 5 years ago | |||
| falbriard | " @Ag8n , Thanks for the reply. There might exist different view angle, about the challenge and ways to tackle the problem. Your answer is right,..." | Read more » | over 5 years ago | |||
| zengirl2 | " I definitely want to work on hacking the FEMA box of food that people receive in emergencies. Let's take the same box size and figure out what peo..." | Read more » | over 5 years ago | |||
| Ag8n | " First, using a spectrometer in the visible range ,by itself, normally isn't possible. You normally have to add chelating agents to make the metal..." | Read more » | over 5 years ago | |||
| DanielleS | " Hey! I'd love to explore and learn about different diy options for soil testing for contaminants.... reagents, colorimeters, spectrometers, etc. O..." | Read more » | over 5 years ago | |||
| FahimR | " Amazing articles quality and presentation. Thank You so mush for sharing. Windows 7 Free Windows 7 Ultimate Free Windows 7 Oct 2018 Free Windows ..." | Read more » | over 5 years ago | |||
| empirejeniffer37 | " I think about it is most required for making more on this get engaged affordable seo " | Read more » | over 5 years ago | |||
| eustatic | "I posted a note here, let's see if i can find test results. here photos, there was oil pipe cleaning sludge, along with biogenic oils. the chemica..." | Read more » | over 5 years ago | |||
| eustatic | " Barium (metals) and Radium 226 (TENORM) are big indicators in production waste. Oils, Diesels, there are many fractions to test for, unless you a..." | Read more » | over 5 years ago | |||
| nedhorning | " Nice photos. I suggest using lighting conditions similar to those for the photos you plan to take. Once you get the white balance routine down it'..." | Read more » | over 5 years ago | |||
| cagiva | " @nedhorning, actually your question/suggestion fixed the calibration. After switching to "Auto" to take a picture to compare and switching back to..." | Read more » | over 5 years ago | |||
| nedhorning | "Do the images you acquire using "Auto" mode look the same or very similar to the ones you acquire using the custom white balance? " | Read more » | over 5 years ago | |||
| cagiva | " @nedhorning, I'm actually using the "Custom" option following the steps shown here, but using the Red calibration card. " | Read more » | over 5 years ago | |||
| nedhorning | " Hi: It looks like you are using "Auto" mode when taking the photo. I don't have this camera but I found this web site that might help: https://sup..." | Read more » | over 5 years ago | |||
| liz | "To your very first question, "How predictable is the search function (do you usually get expected results the first time?)" i have anecdotally hear..." | Read more » | over 5 years ago |