| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "Sorry to bother you. How do your spectra look? How has the instrument been standardized? Thank you. Regards. " | Read more » | over 2 years ago | |||
| Ag8n | "I went over it again. Impressi ve. Are you thinking of doing fluorescence work it, too? " | Read more » | over 2 years ago | |||
| Ag8n | "Very interesting project!! What kind of lamp do you use and how powerful does it need to be? Do you know what spectral range it and the instrument..." | Read more » | over 2 years ago | |||
| dcanprdn | "Absorbance is a chemical definition of how well a dissolved substance attenuates light at a particular wavelength as light passes through a solutio..." | Read more » | about 6 years ago | |||
| cfastie | "I am not familiar with the optics equations. My approach would be to enable precise adjustments of the components and find the best resolution (cri..." | Read more » | about 7 years ago | |||
| jakemartin | "Here is the paper I was thinking of and it is an open paper so everyone should be able to read it. http://www.mdpi.com/1424-8220/8/4/2453 There is ..." | Read more » | over 9 years ago | |||
| jakemartin | "Thanks Mathew, The linearity in the sensor is a problem however it should be exponential so it can be removed. I am imagining the measurements of..." | Read more » | over 9 years ago | |||
| mathew | "I want to highlight this awesome part of your blog post: The next step is to see if quantitative fluorescent measurements could be done by using a..." | Read more » | over 9 years ago | |||
| mathew | "the linearity of that resistor is going to be temperature dependent and non-linear. it may be necessary to get another device to characterize it. ..." | Read more » | over 9 years ago | |||
| warren | "Can you post links to some of your spectra demonstrating this? I think it might be best to just post a research note with some photos of your setup..." | Read more » | over 10 years ago | |||
| dckim11 | "Finally, I got some interesting data.....BUT the results confuse me. I am looking at algae in a petri dish placed between the light source and the..." | Read more » | over 10 years ago | |||
| warren | "Hi - it doesn't seem like it's lined up with the light bulb; but you could try to diffuse the light by placing a piece of semi-transparent (milky) ..." | Read more » | over 10 years ago | |||
| dckim | "Hello Warren! I have attached a screenshot of the "Configure" panel in the Capture interface using four different light intensities (at the very t..." | Read more » | over 10 years ago | |||
| warren | "Hi, Dckim - I just got your email. Can you upload a screenshot of the "Configure" panel in the Capture interface? I think you may need to adjust wh..." | Read more » | over 10 years ago | |||
| azaelbg | "Hi dckim. One may get sharper and bright images by reducing the slit width (by cutting a narrower slit in a new black card) but then you loose brig..." | Read more » | over 10 years ago | |||
| warren | "Yes, you can download in the left-hand column on the spectrum page, it's a small grey bar with XML,JSON, CSV download links. So you think your bri..." | Read more » | over 10 years ago | |||
| dckim | "I attached the picture of the slit. It's from the "standard" desktop spectrophotometer kit that was purchased from here. Any tips with regard to ..." | Read more » | over 10 years ago |