| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "If a source like the sun or an incandescent lamp is used, then maybe using a photographic bg20 filter as a standard would do. The spectrum they a..." | Read more » | over 3 years ago | |||
| Ag8n | "There is a closely related chemical recently added to the USP for uv/vis standardization. It is a solution of didymium. Some places also use a gl..." | Read more » | over 3 years ago | |||
| Ag8n | "https://youtu.be/u5tUmdWALn0 Hopefully, this link works to the video " | Read more » | over 3 years ago | |||
| Ag8n | "Of you take a look at commercial instruments, they will usually use holmium oxide or other holmium salts for calibration. Great. These salts are ..." | Read more » | over 3 years ago | |||
| Ag8n | "Found something.It's a YouTube post by chem_talk on neodymium. It's a long way from complete, but according to the post, this rare earth isn't rar..." | Read more » | over 3 years ago | |||
| mimiss | "Thank you for this idea! I have laser pointers in a few colors in my house that I can try out. On May 5, 2020, at 11:19 AM, notifications@publicla..." | Read more » | over 4 years ago | |||
| liz | "I think I used a red laser and a green laser to get the calibration to work at some point... " | Read more » | over 4 years ago | |||
| kgradow1 | "Could you use a laser pointer and still go through the same workflow with @cfastie's reference image? I'm not sure if the peaks would line up, th..." | Read more » | over 4 years ago | |||
| warren | "It shouldn't make a difference -- the base mercury spectrum should be visible in both! Tell us how it goes! On Thu, Aug 9, 2018 at 10:14 AM \<n..." | Read more » | over 6 years ago |