Spectrophotometry
Today´s practical was going to be, as I found out on WebCT a while ago, about the thrilling subject of spectrophotometry (whatever.....).
You can imagine how surprised I was when looking through my papers as I found a line about the so called Beer-Lambert-Law. Were we going to have a useful practical on British beer?
I very soon had to find out that this law was not about how much beer Lambert can drink until he has to throw up. Actually, it was not about beer at all (what a disappointment!)
But once being there I thought it is rather impolite and quite embarrassing to leave, so I decided to stay.
Our main assignment was to find the concentration of a solution of chlorophyll. So we had two bottles of chlorophyll, which had the colour of those weird green jelly things children sometimes eat. The known solution was the one we used to verify our results - mixing them with distilled water in various different amounts (20, 40, 60, 80 and 100%) - to get a graph we could use to determine the absorbance of the unknown one.
Also, we had the spectrophotometer, which is a machine that tries very hard to look important and difficult whereas all it actually is, is a box you put your sample-filled cuvette in to then read the number it gives you on a little screen.
In conclusion, this was a fairly easy practical - so now let´s try to understand what we did.....
Cheers!
You can imagine how surprised I was when looking through my papers as I found a line about the so called Beer-Lambert-Law. Were we going to have a useful practical on British beer?
I very soon had to find out that this law was not about how much beer Lambert can drink until he has to throw up. Actually, it was not about beer at all (what a disappointment!)
But once being there I thought it is rather impolite and quite embarrassing to leave, so I decided to stay.
Our main assignment was to find the concentration of a solution of chlorophyll. So we had two bottles of chlorophyll, which had the colour of those weird green jelly things children sometimes eat. The known solution was the one we used to verify our results - mixing them with distilled water in various different amounts (20, 40, 60, 80 and 100%) - to get a graph we could use to determine the absorbance of the unknown one.
Also, we had the spectrophotometer, which is a machine that tries very hard to look important and difficult whereas all it actually is, is a box you put your sample-filled cuvette in to then read the number it gives you on a little screen.
In conclusion, this was a fairly easy practical - so now let´s try to understand what we did.....
Cheers!
posted by Confusion of Science Illuminator at 10:28 PM
2 Comments:
Hi Luth...
Here is schatti from hdr-fc.de, you know! ^^
I haven't found a guestbook yet, so i wrote me geetings here. I hope it's ok for you... :)
As I said, I want to send you some greetings from old good Germany. You hopefully enjoy your time in England!
If there are any grammatical mistakes excuse me! My english is not that good.
Now, good night und see you in the lotr-board.
bye, bye yours schatti/Anna
Hey Schatti!
Thanks!
I hope I will enjoy my time here in England. It has been great so far for most of the time!
Don´t worry about your English - I think it is good :)
See you in eleven days (or what was it you just wrote in the "countdownthreat"?)
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