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Using Potassium Bromide in UV-Vis spectroscopy
Using UV/VIS spectroscopy, either an unknown substance can be identified or the concentration of a k ... |
8-5-2016 at 05:44
by: dhaffnersr |
Fluorescein study 6 sample concentrations plus an upgrade to the DVD grating
First, I had to make an upgrade to the DVD piece in my spectrometer this weekend, the way it was, it ... |
1-5-2016 at 01:39
by: dhaffnersr |
Data Validation of previous Eosin Y results for April/21/2016
Not too bad ezza, I see you are using the NaOH/ethanol buffer, I have been experimenting with that b ... |
28-4-2016 at 03:34
by: dhaffnersr |
Data Validation of previous Eosin Y results for April/21/2016
hey nezza
very clean, what are the peak wavelengths? curious because I have to use Plab's s ... |
27-4-2016 at 03:36
by: dhaffnersr |
Data Validation of previous Eosin Y results for April/21/2016
Hey nezza, nice plot. Remember that at higher sample concentrations your going to start suffering th ... |
25-4-2016 at 02:34
by: dhaffnersr |
Data Validation of previous Eosin Y results for April/21/2016
More on my research can be found here:
http://publiclab.org/profile/dhaffnersr
|
23-4-2016 at 13:52
by: dhaffnersr |
Data Validation of previous Eosin Y results for April/21/2016
Using my Aries series green laser, I wanted to validate the Eosin Y study I did the other day with t ... |
23-4-2016 at 11:18
by: dhaffnersr |
Testing fluorescein standards with homemade spectrometer
This post is related to the previous one:
conclusions, 2 data points stand out and they were samp ... |
16-4-2016 at 09:05
by: dhaffnersr |
Testing fluorescein standards with homemade spectrometer
accuracy test for version 2.5 Plab spectrometer, I ran a series of very detailed tests on my spectro ... |
16-4-2016 at 09:02
by: dhaffnersr |
Rev 3.0 to my LED driver circuit...
I revised my schematic to incorporate the bourns POT to control the main voltage and use the trimmer ... |
7-4-2016 at 04:54
by: dhaffnersr |
New upgrade for my spectrometer
New upgrade for my spectrometer
I redesigned the LED driver circuit for the prolight UV LED I u ... |
6-4-2016 at 15:08
by: dhaffnersr |
government restrictions why bother
Believe me, its not so much that governments want to restrict your access to chemicals, they just do ... |
5-4-2016 at 01:41
by: dhaffnersr |
Bad Habits In The Lab
Ha! I thought I was the only one who swung around the empties
I'm glad you admitted it first th ... |
3-4-2016 at 04:30
by: dhaffnersr |
Homemade spectrometer analysis of rhodamine b
[quote]
Have you used it for anything more than rhodamine?
[/quote]
Oh yeah, I've used it wit ... |
2-4-2016 at 12:30
by: dhaffnersr |
Homemade spectrometer analysis of rhodamine b
[quote]
And here are instructions https://www.youtube.com/watch?v=fl42pnUbCCA
[/quote]
A very ... |
2-4-2016 at 09:09
by: dhaffnersr |
1Watt UV LED circuit ready for spectrometer testing
I just finished the prototype for my 1W UV LED for my spectrometer, I redesigned the driver circuit ... |
1-4-2016 at 08:36
by: dhaffnersr |
Homemade spectrometer analysis of rhodamine b
[quote]
I would like more details please. Would you (please) describe the project in enough detai ... |
1-4-2016 at 02:01
by: dhaffnersr |
Homemade spectrometer analysis of rhodamine b
[quote]
OK. That makes more sense. Raman. It would have been helpful to have mentioned that in th ... |
1-4-2016 at 00:21
by: dhaffnersr |
Homemade spectrometer analysis of rhodamine b
[quote]
Looks nice, I didn't know you can get raman signals with a UV spectometer , the rayleigh ... |
31-3-2016 at 11:10
by: dhaffnersr |
Homemade spectrometer analysis of rhodamine b
Here is a spectral scan of rhodamine b @ 50ppm-in ethanol and 100ppb in water using a homemade spect ... |
31-3-2016 at 08:23
by: dhaffnersr |
Readily Available Chemicals Website: Version 2
[quote]
Pretty sure he's in jail. Isn't that one of Organikum's accounts?
[/quote]
Oh man, I' ... |
31-3-2016 at 01:06
by: dhaffnersr |
Readily Available Chemicals Website: Version 2
Hello "I am a fish!"
What an amazing piece of work you did putting that list together, I have not ... |
30-3-2016 at 15:51
by: dhaffnersr |
ppm to mg/l conversion? & expressing concentration by percentage
Hey Bluamine, here is a niffty website that can make it easy;
http://www.lenntech.com/calculators ... |
30-3-2016 at 15:30
by: dhaffnersr |
Homemade spectrometer analysis of rhodamine b
I need the "notch" filter because it eliminates the laser line which causes what is called "rayleigh ... |
30-3-2016 at 11:46
by: dhaffnersr |
Pic's of my DIY spectrometer inside and out
[rquote=443754&tid=65761&author=dhaffnersr]here are shots of my spectrometer and laser set u ... |
30-3-2016 at 04:21
by: dhaffnersr |
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