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dhaffnersr 107 research notes and 158 wiki edits | Joined over 3 years ago






Attempts at Spectrometer stability pics

by dhaffnersr over 3 years ago | 0 | 811 views | 1


Prototype incident light blocker

by dhaffnersr over 3 years ago | 2 | 792 views | 1


Test results today using a .18mm slit

by dhaffnersr over 3 years ago | 0 | 1,093 views | 0



Raman spectrometer in operation (sort of)

by dhaffnersr over 3 years ago | 0 | 1,283 views | 3


Fluorescence of tabasco sauce

by dhaffnersr over 3 years ago | 0 | 959 views | 2


FLUORESCENCE OF 87 OCTANE GASOLINE

by dhaffnersr over 3 years ago | 0 | 1,567 views | 0


Recent Pictures of my lab set up.

by dhaffnersr over 3 years ago | 1 | 809 views | 1



Raman spectrometer using green laser pointer

by dhaffnersr over 3 years ago | 2 | 1,991 views | 4


View these maps at MapKnitter.org »

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Comments

Comment Last activity Moderation
"No jeff, ask as many questions as you like, there should be a lot more discussion and interaction between all of us here. I'm not using NaOH3, whic..." | Read more » about 3 years ago
"Hey jeff! Bingo, yes, Isopropyl will work in some situations, although it is a polar compound, but like ethanol it does exhibit non-polar propertie..." | Read more » about 3 years ago
"Hey jeff, nah man, that's kinda funny though, I might try that! Fluorescein is Ph dependent, the baking soda maximizes the dye's energy transfer. A..." | Read more » about 3 years ago
"hey jeff, NaOH3, is used as a regent for fluorescein because of the Ph level of 8.44, which at that level free's up more hydrogen bonds causing a h..." | Read more » about 3 years ago
"Hey Jeff, I'll start posting more references, sorry, ok, the reason for this particular regent (solvent combination,) is to separate the aromatic h..." | Read more » about 3 years ago
"hey Jeff, that sounds like a great plan! " | Read more » about 3 years ago
"Hey, I noticed when I downloaded your csv file, the wavelength numbers are here but the RGB channel numbers are all zero's? did you do a calibrati..." | Read more » about 3 years ago
"Ok, then its the same camera that is in mine, very cool! Yes, stoft is correct on the stability issue, I followed his lead on that and took a lot o..." | Read more » about 3 years ago
"I think you may be right about the camera's auto gain control, your using a cellphone right? " | Read more » about 3 years ago
"Hey estabean, great question, well I use ethanol because it can dissolve both polar and non-polar compounds, what this means is, like oil, gasoline..." | Read more » about 3 years ago
"Ah, ok that makes more sense now, a beam splitter, interesting how you want to use that, sounds cool. What a pair of adorable little rascals!! Tha..." | Read more » about 3 years ago
"your photographs are beautiful! Actually, you don't need a prism inside the spectrometer, that's what the DVD piece does, the slit only allows a c..." | Read more » about 3 years ago
"hey! Thanks for responding, well my verdict is, that indeed the more expensive laser does exhibit more coherent stability over time, but both the c..." | Read more » about 3 years ago
"I am reposting the final plot graph for the 87 octane gasoline, I should have saved it in PNG form here it is again: " | Read more » about 3 years ago
"I am so glad that you asked that question! I use 2 types of cuvettes, 1) Quartz - they have neutral UV absorption, so it passes right on through wi..." | Read more » about 3 years ago
"hello! Very colorful spectra, you don't really have to be a scientist to see the beauty in those colors, amazing, isn't it? Your right , you have a..." | Read more » about 3 years ago
"I'm posting REV 3.0 because I am incorporating bourns POT which will control the main voltage, while I can utilize the trimmer POT to adjust the vo..." | Read more » about 3 years ago
"This is Rev 2.0 " | Read more » about 3 years ago
"Here is the schematic for the LED driver circuit if anyone is interested. " | Read more » about 3 years ago
"Here is my updated LED driver circuit, which can now run any high powered LED up to 3 watts @ 5vdc. Some specs on the new upgrade: Prolight 1W dr..." | Read more » about 3 years ago
"*Note- Another reason for using the 30sec time window, I am using a very stable 532nm Aries green laser, so I don't have to worry about any "real" ..." | Read more » about 3 years ago
"NOTE* This is a corrected schematic, the previous schematic shows the red lead comming from the anode side of the POT going to the Vin+ pin of the ..." | Read more » about 3 years ago
"Well Dave, I'm just going to have to disagree with you on this one, look, it's an excel program, one of many developed by Thomas C O'Haver, a gentl..." | Read more » about 3 years ago
"Here is a breadboard schematic of the circuit; " | Read more » about 3 years ago

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