Hi, all - thanks to those who attended the kickoff chat. We'll be meeting in the same place, same time next week (see the schedule here).
(above image via @MelissaN on Twitter)
OTK Blog
First, I wanted to mention that we have a program blog here: http://publiclab.org/blog/oil-testing-kit
You can post to it at: http://publiclab.org/wiki/oil-testing-kit-beta#Share+your+work
This is an easy way to share your work and any difficulties you've encountered. It'd also be great if you left comments on one anothers' posts -- if you see something that could be improved or adjusted, or just for encouragement!
Chat recap
Some additional notes from the chat:
- We'll have a new calibration procedure posted and documented very soon - perhaps as early as Friday
- Safety: Please be careful with the laser, and the samples, they are motor and crude oils, and toxic. Ventilation!
- Please share your difficulties, with pictures. Comment on one another's posts!
Mineral oil
There was a discussion about mineral oil -- it was not included in the kit, but is available in most pharmacies and supermarkets -- it is used as a laxative. Since it was chosen specifically because it does not fluoresce, we don't feel that different mineral oils should make a difference, but please do record a baseline of pure mineral oil in a cuvette and upload it as you begin your scanning. (Which is next week's topic!)
Mineral oil is also available online for $9 on Amazon: http://www.amazon.com/Vi-Jon-Inc-S0883-Mineral-Oil/dp/B001B2RG1C/
Next meeting
The next chat is next week, Oct 7, same time and place, and the topic will be: preparing samples, scanning and uploading. The chat, is available at:
Old OTK video
For fun, we shared the old OTK kickstarter video, which is lighthearted but informative: https://www.youtube.com/watch?v=a6jKe80YO8w
Chat transcript
Here's the complete chat. Thanks, and please leave any additional questions or input in the comments, below!
Thanks again to all our OTK Beta Program members: @eustatic, @cquijano84, @Tofu, @ronhuber, @norby, @uprmotero, @Craig, @tmccaffr, @Charles_Hamilton, @mahsa, @JayB, @MelissaN, @LKStendie, @wsg, @zhughbanks, @JeanellSullivan, @Webstertiums, @emilycheung17, @ethanbass, @Cindy_ExCiteS, @chongyukwai, @drocheleau, @gracecagle, @Bluemountainsurfer
5 Comments
I mentioned the new calibration procedure on the chat (esp. @MelissaN @ygzstc), and I just posted a note about it: http://publiclab.org/notes/warren/09-30-2015/new-wavelength-calibration-procedure-preview-for-spectral-workbench-2-0
You can take it for a spin, but please be aware; it's a preview release, so no promises!
Reply to this comment...
Log in to comment
hi guys, I have Mineral oil in my Beta test kit
Reply to this comment...
Log in to comment
Reply to this comment...
Log in to comment
Super, thanks! All good, then.
Reply to this comment...
Log in to comment
There was also a question about later work on lead testing in soil, by @MelissaN - I think it's highly speculative but here's an interesting article on LIBS, or laser induced breakdown spectroscopy: http://www.sciencedirect.com/science/article/pii/S0584854707000079
https://en.wikipedia.org/wiki/LIBS
A starting point, at least. The lead spectrum shown in the article is in the visible region, but I don't know if we could get a laser strong enough to actually induce this kind of spectrum.
Reply to this comment...
Log in to comment
Login to comment.