| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| liz | "I'm wondering if the lead photo is of the microplastics this group collected from the environment and is looking closely at, or, if this is perhaps..." | Read more » | about 3 years ago | |||
| Ag8n | "Your work is very impressive. And it seems like you are just a step away from identification. I wish I knew the exact step needed. The pellets a..." | Read more » | about 3 years ago | |||
| sfererro23 | "What kind of filter are you using? is it efficient? Would you recommend using it? " | Read more » | about 3 years ago | |||
| Ag8n | "Most of these pellets are usually circular, at least around here. Those pellets are hexagonal. It might make it easier to search for the company ..." | Read more » | about 3 years ago | |||
| liz | "Thank you for sharing this gorgeous video with subtitles! I love this project. There's going to be a OpenHour on environmental defense in July in S..." | Read more » | almost 4 years ago | |||
| Ag8n | "An impressive step forward. I couldn't tell, from the visual, if the instrument used FTIR transmittance or FTIR reflectance. Could you please cla..." | Read more » | almost 4 years ago | |||
| GSan | "hello, I started a research with sensing of microplastics in ocean waters. [1] As the idea is for the sensor to be embedded in the float, we don't..." | Read more » | almost 4 years ago | |||
| Ag8n | " Density is difficult to use. Many manufacturers use fillers like titanium dioxide as a filler. This will dramatically alter the density, dependin..." | Read more » | almost 5 years ago | |||
| maxliboiron | " @warren : The fluorescing plastics you mention are from specially designed lab plastics that floresce, so not related to polymer type or to everyd..." | Read more » | almost 5 years ago | |||
| Ag8n | " With PVC, as the plastic degrades, you get more and more conjugated double bonds. Hate to get chemical, but the where the plastic absorbs starts ..." | Read more » | almost 5 years ago | |||
| warren | "Actually I've seen @maxliboiron post pics of plastics inside of plankton, fluorescing, but I don't know that it would make plastic type identificat..." | Read more » | almost 5 years ago | |||
| warren | " You know, I think I remember someone trying this with #hyperspectral imaging. " | Read more » | almost 5 years ago | |||
| warren | " #babylegs is the link... Thanks! " | Read more » | almost 5 years ago | |||
| Ag8n | " Check the "baby legs" projects on microparticles. It will give some background. My own experience was in medical plastics industry. We routinely ..." | Read more » | almost 5 years ago | |||
| Ag8n | " Just realize, these methods are far from being implemented. The mercury one is " proof of concept", which means it still needs troubleshot, valid..." | Read more » | over 5 years ago | |||
| bryanchua | "Thanks for the feedback @Ag8n ! We used FTIR because we saw that people have made DIY FTIR spectrometers and we also read these articles where FTI..." | Read more » | over 5 years ago | |||
| Ag8n | " I've never seen FTIR used for mercury detrmination. Usually, that is a variation of AA. The instrument set up you show is for transmission. Pro..." | Read more » | over 5 years ago | |||
| Ag8n | " I like the idea. But why are you selecting ftir? " | Read more » | over 5 years ago | |||
| warren | "Hi, also noting this great project; https://publiclab.org/babylegs by @maxliboiron ! " | Read more » | over 5 years ago | |||
| Ag8n | "I worked with medical devices, which is different from the microplastics you are after. For example, if we had plastics in a liquid, I would take ..." | Read more » | almost 6 years ago | |||
| niklasjordan | "Thanks for your help. Its big stuff to investigating. Thanks for this ;-) Have you also some stuff to collect microplastic? " | Read more » | almost 6 years ago | |||
| Ag8n | "I can help with analyzing microscopic plastic particles, but not microplastics. Let's start with most expensive and go to least expensive. For R&a..." | Read more » | almost 6 years ago |