Search the web
Sign In
New User? Sign Up
analyticalchemistry · Analytical Chemistry - Analytical chemistry comunity
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Real people. Real stories. See how Yahoo! Groups impacts members worldwide.

Best of Y! Groups

   Check them out and nominate your group.
Having problems with message search? Fill out this form to ensure your group is one of the first to be migrated to the new message search system.

Messages

  Messages Help
Advanced
Messages 165 - 194 of 417   Oldest  |  < Older  |  Newer >  |  Newest
Messages: Simplify | Expand   (Group by Topic) Author Sort by Date ^
165
I agree all chemistry needs to be taught to chemists.<br>If we don't understand Nitrocellulose and organophospherous compounds etc who...
palmerwmd
Offline Send Email
Sep 9, 2001
2:59 am
166
www.geocities.com/sachemicalslb <br>it is being upgraded constantly and if you like to add some stufss you can do too...
salebanon77
Offline Send Email
Sep 16, 2001
1:26 am
167
Hi.<br>Try <a href=http://directory.google.com/Top/Science/Chemistry/Analytical/...
edelirinka
Offline Send Email
Sep 16, 2001
5:30 am
168
Thanks for your help. I was beginning to think that I was all alone here....
jasoux
Offline Send Email
Sep 16, 2001
4:46 pm
169
Hi <br><br>Look for these methods:<br><br>- ionic liquid chromatography<br>- sulfate and chloride specific electrodes<br><br>There also are volumetric methods....
frenchem20
Offline Send Email
Sep 24, 2001
1:37 pm
170
Have you thought about HPLC analysis? <br>Using UV/visible detector, you could monitor for methylene blue with time.<br>You could also try to hydrolyse methyl ...
frenchem20
Offline Send Email
Sep 24, 2001
1:44 pm
171
Please, help me if you know.<br>I wonder what kinds of signals are output signals (when they exit from a detector<br>and go into a computer). I mean various...
bobby71bio
Offline Send Email
Sep 27, 2001
9:16 am
172
Output signals are very definately not standardized....the nature of each experiment in large part determines the signal. In fact, each company will handle ...
dsbsci
Offline Send Email
Sep 27, 2001
1:52 pm
173
try to join bhojaks logical chemistry club to go for reasoning questions from analytical chemistry...
narendarbhojak
Offline Send Email
Sep 30, 2001
2:47 pm
174
I'm sorry I've taken so long to reply to your post. The answer to your problem(s) could well be thermometric titration. We can do both sulphate and chloride ...
labrat1941
Offline Send Email
Oct 4, 2001
1:44 am
175
We have a certain amount of an acid which is dissolved in water. Can we predict pH of the obtained solution if we know the dissociation constant of the acid. ...
bobby71bio
Offline Send Email
Oct 12, 2001
7:50 am
176
Ive just started my BSc in analytical chemistry and one of my first laboratory practicals was in NMR. The machine was an old 90MHz one.in the practical we used...
jake1445
Offline Send Email
Oct 17, 2001
12:52 pm
177
hello,sorry for delay,you can predict the pH of your solution as follow:<br><br>pH = 0.5(pKa + pC) where,<br><br>Ka = dissociation constant of the acid.<br>C =...
mras2001eg
Offline Send Email
Oct 21, 2001
9:52 am
178
hi, is there any special way to improve the recoveries in SPE .Ofcourse I know 2 factor <br>1-adding 5ml methanol <br>2- pH= 2-3...
sepidehoz
Offline Send Email
Oct 24, 2001
9:12 am
179
I'm working with Limonene (orange scented compound). My advisor seems to think it has some use as a base compound for "home" drug synthesis such as GHB or ...
bbrookuk
Offline Send Email
Oct 25, 2001
12:10 pm
180
I used to manage a forensic laboratory and have attended numerous meetings in which GHB and analogs were discussed. I don't recall ever hearing limonene...
dsbsci
Offline Send Email
Oct 25, 2001
1:17 pm
181
Thanks for the reply...<br>It is actually the "other things" that I was wondering if anyone knew it was used for... I was mentioning GHB as an example. Her...
bbrookuk
Offline Send Email
Oct 27, 2001
4:40 pm
182
hello every body , i am in need of an internet site giving the structural formula of drugs.<br>thanks for your care...
mras2001eg
Offline Send Email
Oct 28, 2001
7:27 pm
183
Hello, I'm glad to join this club and I have some questions about using a hydride generator.<br>I'm a new user of ICP/AES 124 made by Jobin Yvon and I use ...
keunyoung
Offline Send Email
Oct 29, 2001
5:19 am
184
Try www.chemfinder.com...
cviales
Offline Send Email
Oct 29, 2001
9:55 am
185
Bryan,<br><br>Well, as I said, Limonene is a terpene, so in principle, it could find usefulness in sythesizing a wide variety of compounds. However, I know of ...
dsbsci
Offline Send Email
Oct 29, 2001
1:18 pm
186
For the CAS Online searching, try <br><br><a href=http://stneasy.cas.org target=new>http://stneasy.cas.org</a><br><br>These are fee per search sites. I believe...
dsbsci
Offline Send Email
Oct 29, 2001
1:24 pm
187
I am not sure if i can help, but i did work on the water treatment. In my work we didn't detect the Hard metals as teh company has bought a hole river and ...
salebanon77
Offline Send Email
Oct 29, 2001
11:53 pm
188
Hello everyone. I need some help.<br>For my final project in university I am going to try and make trinitromethane through a nitric acid nitration with either ...
koningrutger77
Offline Send Email
Nov 1, 2001
10:12 am
189
I would not attempt to analyze any acidic mixture via GC/MS, unless you happen to KNOW the gc column can handle it. LC or LC/MS might be okay...<br><br>Any...
dsbsci
Offline Send Email
Nov 1, 2001
4:46 pm
190
Old spectrometrs tend to have 3 major problems:<br>1) The Lamp light wouldn't be as intense anr diverse anymore. Due to aging effect part of the lamp filaments...
salebanon77
Offline Send Email
Nov 3, 2001
12:22 am
191
i am looking for the metal analysis of steel. which is the best/selective solvent for this (HNO3-nitric acid)? what are the steps of the analysis? the type of...
nesta210279
Offline Send Email
Nov 3, 2001
10:20 pm
192
Fire is the effect generated when certain molecules in the air are heated beyond their ionization temperature. <br>More an optical phenomenon than anything ...
palmerwmd
Offline Send Email
Nov 10, 2001
3:33 am
193
Larger fires can reach much higher temperatures.<br> For example the firebombimgs of Tokyo and Dresden, the effect teh allies desired was to create a fire so...
palmerwmd
Offline Send Email
Nov 10, 2001
8:35 pm
194
Well also about Fire. Now a little less chemical. The fire flame isn't as we think an anarchic movement, instead the variantion of the fire flame follows ...
salebanon77
Offline Send Email
Nov 22, 2001
12:08 am
Messages 165 - 194 of 417   Oldest  |  < Older  |  Newer >  |  Newest
Advanced
Add to My Yahoo!      XML What's This?

Copyright © 2009 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines - Help