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Messages 1290 - 1319 of 3939   Oldest  |  < Older  |  Newer >  |  Newest
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1290
HI, I never thought dealing wiht a polymer was so tiresome....I'm trying to get an IR spectrum from nylon 6,6 and I just cant disolve tha polymer to...
giuseppe giammanco
giammancogiu...
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May 1, 2004
4:25 pm
1291
Hi, There are some papers by Lon Mathias that might help. I can't think of the journals offhand but he has done a lot of work with nylon. Ian ... ...
Ian Macdonald
macd0060
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May 5, 2004
5:53 am
1292
... trying to get an IR spectrum from nylon 6,6 and I just cant disolve tha polymer to precipitate it as a podwer.....I tryed whit m-cresol and that worked,...
zezo2003_20044
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May 5, 2004
5:20 pm
1293
hey hey, just thought id tell you guys about this free debt consolidation site that reduced my monthly payments by damn near half, no more worries about bills!...
size_up93
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May 14, 2004
1:08 pm
1294
First, this has nothing to do with organic chemistry, neither this posting nor my reply. However, I hate lies, so I'd like to address this email: MISCONCEPTION...
irene_kamel
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May 18, 2004
8:29 pm
1295
see http://materialistparadigm.blogharbor.com/blog/ [Non-text portions of this message have been removed]...
stephen mooney
stephenlmooney
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May 23, 2004
1:35 am
1296
dear , i am not muslem, first & do not have any dopt about your first paragraf. irene_kamel <irene_kamel@...> wrote:First, this has nothing to do with...
raman hormozi
raman_hor
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May 23, 2004
5:47 am
1297
i have been working on a project where i am doing quantitative analysis of a mixture of lower cahin carboxylic acids(pentanoic, hexanoic and heptanoic acids)...
shemmusyoki
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May 28, 2004
6:52 am
1298
hi, Biphenyl is the most commonly used internal standard. It comes on GC at 5.6min and is very less reactive towards most compounds. other than that you can...
anant kapdi
anantkapdi
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May 28, 2004
11:31 am
1299
hello , i would like to know more about yur project topic.what are u trying to establish. how are you approaching the objectives,what methods are adopted. pls...
obasuyi emma
emmasuyi
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May 28, 2004
5:49 pm
1300
Hi!! Internal Standard should be selected as; as it should have a more or lesss structural similarities with that of our samples but they should have...
Raghuraman R
raghuramanr79
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May 29, 2004
4:38 am
1301
you are right on the properties of an internal standard. But i have had a hard time choosing one. The biggest problem is that i may have to use two or more ...
Patrick M Shem
shemmusyoki
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May 31, 2004
7:44 am
1302
hi, 2-methyl pentanoic acid and benzoic acid are the most commonly used internal standards for such analysis. I have also attached the following link for a...
anant kapdi
anantkapdi
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May 31, 2004
9:31 am
1303
Thank you very much Anant. Thank you again for the paper. I really apprecaite your help. One of my colleagues had also suggested 2-methylpentanoic acid , but...
Patrick M Shem
shemmusyoki
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May 31, 2004
10:02 am
1304
Thank you very much Anant. Thank you again for the paper. I really apprecaite your help. One of my colleagues had also suggested 2-methylpentanoic acid , but...
Patrick M Shem
shemmusyoki
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May 31, 2004
10:06 am
1305
hi patrick, recently Gregory Fu from MIt has used Dodecane as an internal standard and is supposed to be very inert for all the compounds whether its ketones...
anant kapdi
anantkapdi
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May 31, 2004
2:27 pm
1306
hi friends, I thought that this is a good opportunity for me to present you with my publications. The first one is now on the web and I have attached the front...
anantkapdi
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May 31, 2004
2:38 pm
1307
I was really far into debt. Like Most I was in Financial dispair. I could not seem to get ahead no matter how hard I tried. Untill I found this place. ...
afheze27
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Jun 9, 2004
7:38 pm
1308
Hi 'm new to the group. I joined this group in search of a CO2 RASMOL file. I have search the internet and can't find one. If anyone has a copy or knows where...
cydonia1101
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Jun 11, 2004
7:23 am
1309
Sorry if my english is bad. But i wanna know something. When i add NaSO4 to Fe2S (ferrous silicate???, sorry not sure)the insoluble salt that was formed is...
ayinaim
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Jun 19, 2004
4:06 pm
1310
oops, sorry...i was wrong... correction : FeSO4 + Na4SiO4...
ayinaim
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Jun 20, 2004
5:22 am
1311
Please forgive us for any disturbance, but we have an important subject to address to you regarding FAITH, and we Don't intend to overload your email with...
lillian
hwilliamsh
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Jun 20, 2004
5:33 am
1312
I had really high interest rates on my home loan. I saved thousands of dollars on home payments. And you can too. Interest rates are as low as can be, And Yes...
jprohof144
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Jun 24, 2004
6:04 am
1313
I'DLIKE TO KNOW MORE ABOUT CARBOHYDRATE ORGANIC CHEMISTRY EXPLANATIONS EXAMPLES etc..... ALSO ABOUT ALDEHYDES KETONES CARBOXYLIC ACIDS AMINES NOMENCLATURE G.R...
AMR ALI
roar25edo
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Jun 25, 2004
10:46 pm
1314
hi friends, I would like to share the publications which have completed in the recent months. I also like to know if anyone is working in the same field and...
anant kapdi
anantkapdi
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Jun 26, 2004
6:45 pm
1315
u have done a gr8 work anant kapdi <anantkapdi@...> wrote:hi friends, I would like to share the publications which have completed in the recent months....
ankur khera
mastermindankur
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Jun 26, 2004
7:35 pm
1316
hi, i have a question aoubt HNMR of HDI(O=C=O=N-CH2-CH2-CH2-CH2-CH2- CH2-N=C=O).The areas of the three different kinds of H are different,about 20% difference....
beiswood2000
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Jun 30, 2004
2:38 pm
1317
hey no idea!!!! beiswood2000 <beiswood2000@...> wrote:hi, i have a question aoubt HNMR of HDI(O=C=O=N-CH2-CH2-CH2-CH2-CH2- CH2-N=C=O).The areas of the...
ankur khera
mastermindankur
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Jun 30, 2004
5:15 pm
1318
The molecule has symmetry so I would expect 2x+2y+2z i.e. equal areas. Perhaps the isocyanide was made from a compound with a hexane isomer mixture? Is the...
Ian Gilmore
calaban10
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Jul 1, 2004
2:14 am
1319
hai beiswood The reactant you have given is unclear showing the unsymmetrical, (like oxygen having 4 valency), O=C=O=N-CH2-CH2-CH2-CH2-CH2-CH2-N=C=O it may be...
Rajesh Khanna
rajeshandkhanna
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Jul 1, 2004
4:32 pm
Messages 1290 - 1319 of 3939   Oldest  |  < Older  |  Newer >  |  Newest
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