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...
Want to share photos of your group with the world? Add a group photo to Flickr.

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 252 - 281 of 417   Oldest  |  < Older  |  Newer >  |  Newest
Messages: Simplify | Expand   (Group by Topic) Author Sort by Date ^
252
Hi Jason, I am sorry I didn't reply earlier. I am working in an analytical lab, and we use mainly HPLC and GC. I think these are the basic pieces of...
Carolyn Griffiths
welshone2002uk
Offline Send Email
May 4, 2002
11:06 pm
253
thanks carolyn...i really do hope i get a job as an analytical chemists...after all i am enjoying my laboratory experiments...next meeting we will be...
dag_simmons
Offline Send Email
May 6, 2002
11:52 am
254
On 5 May 2002 12:29:02 -0000 analyticalchemistry Moderator ... My nane is Arthur, I'm Chemist and work at Customs Chemical Laboratory. My skills are...
Arthur Nascimento Jun...
scientia2002br
Offline Send Email
May 6, 2002
12:30 pm
255
Je serai absent(e) du 06.05.2002 au 20.05.2002. Je répondrai à votre message dès mon retour. ...
stephane.gorgerat@...
sgorgerat
Offline Send Email
May 6, 2002
11:01 pm
256
Dear Analysts Does somebody help me with TLC /Column Chroamtography methods for Naphtalene sulfonic, disulfonic and trisulfonic acids. Thanks in advance Arthur...
Arthur Nascimento Jun...
scientia2002br
Offline Send Email
May 7, 2002
1:50 am
257
I want to know much about detergent, how they work and how about their pollution. Thanks -- In analyticalchemistry@y..., "Arthur Nascimento Junior"...
wraspati
Offline Send Email
May 16, 2002
9:11 am
258
Hi Detergents are surface active substances. They lower the surface tension (gamma) of a liquid. A surfactant generally consists of a lipophilic and...
Patric
thechampatweb
Offline Send Email
May 17, 2002
1:31 pm
259
hi there...we just finished ourlast experiment in our analytical chem laboratry...i enjoyed he laboratorywork so much that i ant to spcialize inhis field aftef...
dag_simmons
Offline Send Email
May 18, 2002
11:19 am
260
i want to ask how to determine the stability constant of a metal complex using spectrophotometric measurments.both the metal and the ligand are colourless but...
mras2001eg
Offline
May 26, 2002
8:30 am
261
... BEGINNING OF MESSAGE May 27, 07:31 When I taught chemistry at Penn State University we did an experiment to determine the formulas of two complexes:...
octanediol
Offline
May 27, 2002
11:40 am
262
Can anyone working in an analytcial chemistry service laboratory update us about the latests innovations in analytical chemistry???? It will be a lot of big...
dag_simmons
Offline Send Email
May 28, 2002
3:05 am
263
yes, i understood that but this gives me the molar ratio of the components ot the formed complex but not the stability constant( the formation constant) the...
mras2001eg
Offline
May 30, 2002
8:46 am
264
... the ... BEGINNING OF MESSAGE Thursday, May 30, 17:58 (EDT) Draw tangents to the curve on both ends. They have to intersect above the correct ratio. This...
octanediol
Offline
May 30, 2002
10:04 pm
265
... have ... BEGINNING OF MESSAGE Friday, 09:50 You have to use corrected absorbancies in your graph. You have to subtract the absorbance of the pure metal...
octanediol
Offline
May 31, 2002
1:53 pm
266
dir, octane thanks alot for your care, i would wish if u can remember the equation...
mras2001eg
Offline
Jun 1, 2002
10:51 am
267
... remember ... BEGINNING OF MESSAGE Saturday, 07:15 This was an experiment in Chemistry 15 at Penn State University. I will look for the lab manual. I will...
octanediol
Offline
Jun 1, 2002
11:17 am
268
... BEGINNING OF MESSAGE June 2, 07:59 Let Emax be the absorbance at the point where the two tangents intersect. This represents the complete reaction. Let...
octanediol
Offline
Jun 2, 2002
12:04 pm
269
... I ... the ... thanks, i would like to have the equation quickly please if u can...
mras2001eg
Offline
Jun 3, 2002
1:56 pm
270
... University. ... the ... I ... BEGINNING OF MESSAGE Friday, June 7, 07:27, EDT, USA How soon do you need the information? What date? Dr. J END OF MESSAGE...
octanediol
Offline
Jun 7, 2002
11:28 am
271
... can ... hi, just before 10 th of this month ... believe ... versa)....
mras2001eg
Offline
Jun 8, 2002
2:10 pm
272
Hi all, I'm glad i'm a member of this group and i believe i'll enjoy your friendship. I'm currently working on a project that has to do with how to optimize...
rosemary_abu
Offline Send Email
Jun 14, 2002
11:32 pm
273
Job Title: Senior Scientist Reports To: Director/Manager/Group Leader Department: R&D - Formulations FLSA SUMMARY OF ESSENTIAL FUNCTIONS: This position...
idahoredfish
Offline Send Email
Jun 24, 2002
4:08 pm
274
Dear Members This is to introduce to the chemistry community "Analytical Chemistry Web Resources (with Chemistry in Africa)", with a theme to assist libraries...
ghirma2001
Offline
Jul 1, 2002
11:36 am
275
dear sir/madam i am looking for a method for determination rate of rxn malachite(Cu2CO3OH)WITH H2SO4.this rxn is very fast becouse of OH and CO3 groups.please...
hamid james
hamidchar
Offline Send Email
Jul 14, 2002
2:57 pm
276
... you ... Please tell me what type of amine and what type of column ur using at the moment and if u have any problem let me know Muhammad Nadeem...
nadeemqadri
Offline Send Email
Aug 2, 2002
1:35 pm
277
Hi Please , does somebody help me with information, articles or papers about Diethyl alkylamines and their colorimetric or TLC determination. Thanks in advance...
scientia2002br
Offline Send Email
Aug 6, 2002
10:18 pm
278
Please send me ur question i would try to help u at my earliest ... Do You Yahoo!? Yahoo! Health - Feel better, live better [Non-text portions of this message...
Dr. Muhammad Nadeem
nadeemqadri
Offline Send Email
Aug 7, 2002
1:21 am
279
HCl(aq) + Ca(OH)2(aq) -------> ???? Thats all I need to know. Thanks...
lunaartimus
Offline Send Email
Aug 7, 2002
1:43 pm
280
I think following is ur answer HCl(aq) + Ca(OH)2(aq) -------> CaCl2 and H2O but it would be very slow b/c Ca(OH)2 is very week base. ... Do You Yahoo!? Yahoo!...
Dr. Muhammad Nadeem
nadeemqadri
Offline Send Email
Aug 8, 2002
1:17 am
281
... I don't think that reaction will be "very slow because Ca(OH)2 is a weak base." If you write the net ionic equation for that reaction, it will 'point' to...
dsbsci
Online Now
Aug 8, 2002
11:43 am
Messages 252 - 281 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