colorimeter
colorimeter


Author Comment Last activity Moderation
fongvania "Good to know about CIE vs Hunter, I didn't even realize there were two different systems. Since this case is simple enough and relies on the compa..." | Read more » 8 months ago
Ag8n "If using an instrument like a hunter colorimeter, be careful. There is the Hunter L,a,b scale. Then there is the cie L,a,b* scale. Most instrumen..." | Read more » 8 months ago
Ag8n "Little change here. Most water or liquid measurements are on transmitted or absorbed light. " | Read more » 8 months ago
Ag8n "Its very easy to get these two instruments confused. If you are measuring color in industry(as in paint color, siding color, etc), its often with ..." | Read more » 8 months ago
Ag8n "You have to be careful on how different methods work. The answers can vary dramatically from method to method. For example, if atomic absorption(..." | Read more » about 2 years ago
coreytegeler "Hey @DanielleS, I'm hoping to join the call next week, I'd like to submit some things to the spreadsheet before the call as you suggested. I just s..." | Read more » almost 4 years ago
DanielleS " ps- so great that some of you can make it to the Open Hour on soil testing! We are going to harvest the soil testing options in a spreadsheet- ple..." | Read more » almost 4 years ago
stevie " @eleanorwarner @gbathree @dbgrover - Think you might be interested in this upcoming OpenHour on soil testing as well! www.publiclab.org/openhour " | Read more » almost 4 years ago
jjcreedon " Yes, agreed. I was just thinking about this yesterday. There most def is a cost barrier associated with soil testing. Thats why if a community gro..." | Read more » almost 4 years ago
DanielleS "@falbriard @jjcreedon thank you for the info! Can you join us for a brainstorm about soil testing at the Upcoming OpenHour? Date: Monday, April 1s..." | Read more » almost 4 years ago
shritejkhopade8 " NICE POST THANKS FOR SHARING " | Read more » almost 4 years ago
jjcreedon " XRF analyzers are expensive to purchase; however , most companies that sell them will also rent instruments. This is a great option for large proj..." | Read more » almost 4 years ago
falbriard "@DanielleS I live and work at the Southern Coast in Brazil in a green forest belt known as Atlantic Rain forest. Traveling to Barnraising/TX would..." | Read more » almost 4 years ago
DanielleS "Thanks @falbriard - I would love to exchange thoughts and brainstorm on this. I think its really important to keep developing these technologies. W..." | Read more » almost 4 years ago
Ag8n "I know it's expensive, but the quickest heavy metal monitor is to dry the soil and do X-Ray flourescence (XRF). After that, there are many set che..." | Read more » almost 4 years ago
falbriard " Dear DanielleS. I'm a software developer, retired but still active with code writing, developing analytics for natural resource management. We ju..." | Read more » almost 4 years ago
Aleksi12358 "What contaminants exactly you are talking about? There is photometer reagents for many different chemicals. For example this shop has many differen..." | Read more » over 4 years ago
emontoya57 "Very inspiring nice work!!! " | Read more » about 7 years ago
chemcarr "This is very interesting. I am also working towards this kind of analysis, and especially open source accessible, whether fabrication or software/k..." | Read more » almost 8 years ago
Frikkie "Just noticed video1's name show nitrate. Its meant to be nitrite, sorry about that. " | Read more » almost 8 years ago
Phil "This is wicked Stuff! Thanks for sharing! " | Read more » almost 8 years ago
Frikkie "For anyone who wants to try out the excel tool, here is the video’s for the recordings I made for the colorimetric nitrite analysis, the EC and fla..." | Read more » almost 8 years ago