| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "Nice sharp lines on the neon spectrum! Good job! " | Read more » | almost 6 years ago | |||
| Ag8n | "Anything to help. Those wavelengths are common in HPLC work. Before the new instruments, for uv/vis detectors, they would take a mercury lamp and..." | Read more » | about 6 years ago | |||
| Ag8n | "The typical light sources used for commercial UV spectrophotometers are deuterium lamps. These light sources easily cover 190 nm to 400 nm. They ..." | Read more » | about 6 years ago | |||
| Ag8n | "The instruments to do The testing you want are complicated. It's not that the spectrometer couldn't be used, but it would take a lot of work. Her..." | Read more » | about 6 years ago | |||
| Ag8n | "Well, exactly what approach are you thinking of? Let's see if the already tried can be eliminated and maybe make it easier to make progress. " | Read more » | about 6 years ago | |||
| Ag8n | "Thanks! Give me a couple of days and I'll email you a more detailed description. The help is appreciated! " | Read more » | over 6 years ago | |||
| Ag8n | "There are a few " killers" in the referenced article. One was the remark about converting arsenic to volatile hydrides. One of those hydrides cou..." | Read more » | over 6 years ago | |||
| Ag8n | "A partial answer. Each block of analyzers is heated to 37.0 C . They do not use a spectrometer. Instead, each cell in the analyzers has a led (a..." | Read more » | over 6 years ago | |||
| Ag8n | "Thank you for your reply. Very good sir. That would save time! " | Read more » | over 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 » | over 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 » | over 6 years ago | |||
| Ag8n | "Yeah, I'm still old school. That paper is the way for me! " | Read more » | over 6 years ago | |||
| Ag8n | "It's very useful. Thank you for the information. Atomic emission is good, but for maximum sensitivity, you need variations. These are atomic abs..." | Read more » | over 6 years ago | |||
| Ag8n | "Time for me to start dusting off Raman stuff. " | Read more » | over 6 years ago | |||
| Ag8n | "Excellent project. Excellent data analysis. Sorry the project didn't work out the way you wanted. " | Read more » | over 6 years ago | |||
| Ag8n | "What do you think of the ones that are transparent on all four sides? That way the cuvettes can be used for trans, abs, flores, or turbidity. The..." | Read more » | over 6 years ago | |||
| Ag8n | "Ratio= (absorbance interesting area/absorbance uninteresting area ) " | Read more » | over 6 years ago | |||
| Ag8n | "Here are some calculations. Don't know if they will help... Btw, I noticed the halogen, and would suggest holding on to it. At least until other t..." | Read more » | over 6 years ago | |||
| Ag8n | "Excellent data!! What direction are you headed for analysis? Absorbance, transmittance, reflectance, or some of the ratio stuff done with other a..." | 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 | "The device referenced has very mixed reviews on the internet. And it does seem pricey. As a suggestion, borrow or rent one first. Try it and see..." | 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 | |||
| Ag8n | "Maybe. It depends on the chromophores present, the assay method used, and a bunch of other factors. And that's before you talk about the instrume..." | Read more » | over 6 years ago |