hydrogen-sulfide-sensing
hydrogen-sulfide-sensing


Author Comment Last activity Moderation
warren "Hi, just wondering - were the controls completely sealed, or did you also put controls in areas where there was air, but not air with H2S? Just thi..." | Read more » over 7 years ago
warren "Just in case the Slideshare disappears, i'm uploading the PDF here: deaverfinal-140617232405-phpapp01.pdf " | Read more » over 7 years ago
ghing "I ordered a WheeStat from the Public Lab Store. The board is stamped "WheeStat 5". I'm running Ubuntu 16.10 (64-bit) and just wanted to share the..." | Read more » over 7 years ago
Laszlo "Dear Dr. Summers, I ordered WheeStat 5.1 potentiostat from OSH Park and built a potentiostat system as described here. Everything seems fine excep..." | Read more » about 8 years ago
warren "Hi, Sophie - did you get to do your follow-up tests? I'm curious what's happened since you published this! Thanks! " | Read more » over 8 years ago
natalie "This is the link to the Public Lab product page for the WheeStat if folks would like to purchase one. http://store.publiclab.org/collections/new-k..." | Read more » over 9 years ago
JSummers "Hi Gretchen, We are making no attempt to degas the sulfuric acid solution. First, we used relatively dilute acid which we assume will behave more ..." | Read more » over 9 years ago
gretchengehrke "Hi Jack, Two quick thoughts: (1) Have you degassed your sulfuric acid too? For whatever reason, in my experience, H2SO4 takes longer to degas than..." | Read more » over 9 years ago
sara "Hi Sophie it just occurred to me that the Hydrogen Sulfide may have reacted with the metallic surface of the bag? Did you consider that? What were ..." | Read more » over 9 years ago
warren "Very cool! I want to be sure @sophie, @ewilder, @Clarke_Brian, @deepwinter, @megan, and @fernandolunav see this and you all can coordinate on diffe..." | Read more » over 9 years ago
JSummers "Hi Sean, Sorry about the delay in getting back to you. I was out of town. I sent Daniel an email asking him for more info and I will look into thi..." | Read more » almost 10 years ago
sg297 "Hi Jack, I am also trying to connect a Raspberry Pi to the Wheestat with the TM4C123G launchpad. Could you (or Daniel) add an extra bit to the Lin..." | Read more » almost 10 years ago
JSummers "Hi Mathew, My guess it that this is going to be a processing issue. My next guess is that there is a problem on line 13 of the Dropdown_Lists tab..." | Read more » almost 10 years ago
JSummers "Ok. Can you see the port from Energia? That will tell us whether it is a mac / energia issue or a mac / processing issue. Jack " | Read more » almost 10 years ago
mathew "Jack, I'm not able to get the Wheestat's port to recogize on a mac-- Processing won't recognize the USB Port-- I can only select bluetooth. " | Read more » almost 10 years ago
JSummers "I responded to Kloots' comment (above) by email, but by the time he got it he had already diagnosed and fixed the problem. As I understand it, the..." | Read more » almost 10 years ago
kloots "Dear Dr. Summers, I still get the same error after doing everything I could: WheeStat5_4b.ino: In function 'void setup()': WheeStat5_4b:122: erro..." | Read more » almost 10 years ago
sophie "Thanks for all the positive feedback! I'm not sure where the bags originally came from, but they cost about $35 for five here: http://beprepared.co..." | Read more » about 10 years ago
megan "Nice! I love the water bag tests, it is really brilliant. What is the cost of the bags? If doing a large scale deployment, it seems like it would b..." | Read more » about 10 years ago
warren "Wow, this looks great; I really appreciate the emphasis on ease of construction and your careful water bag tests! @megan, @deepwinter, and others w..." | Read more » about 10 years ago
JSummers "Hi Don, Glad to hear that you liked the explanation. I hope to get around to measuring some metals in water before long and once I do, I will publi..." | Read more » about 10 years ago
donblair "Jack, this is fantastic. Very clear explanation! Could we have a follow-up note at some point soon re: e.g. how you might use the WheeStat potent..." | Read more » about 10 years ago
eustatic "hey, is hte link still functional? " | Read more » about 10 years ago
warren "Link to the Horwell paper: http://www.sciencedirect.com/science/article/pii/S037702730400304X " | Read more » about 10 years ago