Natural Science Forum / Chemistry / Analytical Chemistry / January 2006

Looking for a choice of capillary GC column that will last a long time.
Our samples shouldn't be that rugged, mostly extracts for metabolic
studies. But it's hard to get a column that will hold up more than a
year or so. Perhaps I have too many air leaks in the system, or should

Dear
I have powders which is mixtures of CaO, CaTiO3, CaCO3..
Then I'm not sure the percentage of CaO in the powder.
Is there any easy way to find that?

I searched ChemUserWorld regarding having chemstation print into pdfs
instead of the printer while saving the results to the data directory
associated for that report.  This appears that it can be done, has
anyone on this board managed to do this?

Low cost medical and laboratory equipment  from China
UniVisual Inc is a medical and laboratory  equipment and software
company. We have low costs Ultrasound, CR, Dr MRI, RIS/PACS  from
China. Ultrasound can be as low as $650/set.  We have also lab

Could anyone please provide me with a table of boiling point
elevation temperatures of NaCl solutions at various
concentrations.... vapour pressure values at various
temperatures/concentrations

i found electrochemical detection is used when detect oxidized DNA
bases. in some research article. but there is only diode array detector
in our labs.
Could diode array detector detect oxidized DNA bases?

e frequenctly have Used Equipments for sale at bargain prices. Kindly
register your requirement, and when the equipment is available, we
shall get back to you. Detail your requirements fully to avoic cross
querries

I am hoping someone can lend a suggestion for the following.
In the hope of achieving lower limits of detection for arsenic species, we
hooked up an old AA-20 with a hydride system following a UV/Vis detector.
We are using PeakNet software to control an Advanced Gradient Pump and

Is there any rapid method is available for the estimation of free
phenol content in phenol formaldehyde resin by non aqueous / aqueous
titrimetric method?
ahs.manian

      Any one kindly suggest the method for determination of lead in
water samples by GFTA.
We are using normally 217nm, with ashing ans atomiser tem are 800&1200
degree.

Any help and suggestion are welcome for this potential project
The Design of Low Cost ICP -MS
Lianyun  He  College of Information Engineering, East China Institute
of Technology

I recently purchased some raw Shea Butter, which is a
tree-derived butter that is supposed to be good
for the skin. However I want to test it, and subsequent
purchases of it, to make sure it is really, truly raw.

what are the limitations of analyte identification by HPLC

hi Iam looking to get powerful nmr adviser to learn more about this
tecqnique
10q