| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "Sorry for the delay in answering. Spectroscopy is used many places in industry and medicine. For example, a variation of visible spectrometry is ..." | Read more » | over 5 years ago | |||
| Ag8n | "As for what method can do soil, paint, water, etc. Edxrf has a big problem with water. Water absorbs xrays. You can get around this by evaporati..." | Read more » | over 5 years ago | |||
| Ag8n | "As for what method can do soil, paint, water, etc. Edxrf has a big problem with water. Water absorbs xrays. You can get around this by evaporati..." | Read more » | over 5 years ago | |||
| Ag8n | "As for difficulty: Worst is ICP- ME ICP-OES GFAA AS EDXRF Wet chemical Easiest Many of the wet chemical methods can only detect heavy metals as le..." | Read more » | over 5 years ago | |||
| Ag8n | "Read- ICP-MS is the premier method.no doubt. But you pay for it. I'm second place is ICP-OES (ICP-optical emission spectrometry). Pretty much th..." | Read more » | over 5 years ago | |||
| Ag8n | "I'd be happy to help. Give me some time to look it over. I've worked extensively with EDXRF, but mostly the desktop (read R&D) variety. Only..." | Read more » | over 5 years ago | |||
| Ag8n | "I've done a lot of lead testing. This was mostly by atomic absorption (AA), in an industrial situation. The specs have changed. The lead levels ..." | Read more » | over 5 years ago | |||
| Ag8n | "A couple of gottchas here. I think you want to use the lego spectrometer with a light source. The light source would be fed through a cuvette fil..." | Read more » | almost 6 years ago | |||
| Ag8n | "The public lab instrument will cover a part of the NIR. Unless you can find very cheap used FTIR, the cost of the instrument will far exceed your ..." | Read more » | almost 6 years ago | |||
| Ag8n | "I have very little experience with soil testing. So the local extension agent was called. He suggested the lamotte NPK test kits. One that will ..." | Read more » | almost 6 years ago | |||
| Ag8n | "I'm very interested in your next steps and where you are going with this. Any details? Thank you. Regards. " | Read more » | about 6 years ago | |||
| Ag8n | "Thank you for your reply. Very good sir. That would save time! " | Read more » | about 6 years ago | |||
| Ag8n | "My apologies, but I still don't see where you are trying to go. The QCM will change frequency with weight. How is this going to work with the spec..." | Read more » | about 6 years ago | |||
| Ag8n | "Very interesting project. How do piezo products the into the product? Are you using ceramic or polymer piezo products? Good luck with your proje..." | Read more » | about 6 years ago | |||
| Ag8n | "Near the top of this page is a tag labelled "spectrometer". Tap on that to start. Once you are in that spectrometer info, you will see a link " t..." | Read more » | about 6 years ago | |||
| Ag8n | "Thank you for your answer. There are a lot of questions about color, interferences, number of tests being done, etc. That we could go back and for..." | Read more » | over 6 years ago | |||
| Ag8n | "Thank you for your reply. I looked at the paper referenced. The pump modifications look very good! Glad to hear you are in the validation phase...." | Read more » | over 6 years ago | |||
| Ag8n | "There are two approaches to this, the hardware and software. Sounds like you took care of the hardware end very well. Can you think of any softwa..." | Read more » | over 6 years ago | |||
| Ag8n | "Only one suggestion then. Sunlight can be strong. As a safety measure, partially block the sun and work your way up to full exposure. Might not ..." | Read more » | over 6 years ago | |||
| Ag8n | "Please forgive the question, but what lines are you using and what method of analysis? Thank you for the information. " | Read more » | over 6 years ago | |||
| Ag8n | "One of the links on the page was for an aotf nir spectrophotometer. Part of this instrument was a vco that could be tuned from 75 mhz to 120 mhz. ..." | Read more » | over 6 years ago | |||
| Ag8n | "I may be wrong, but it looks like a fast Fourier transform (FFT) version of this instrument is possible. Any suggestions on how to approach that?..." | Read more » | over 6 years ago |