Natural Science Forum / Chemistry / Analytical Chemistry / September 2006

i just dug out an old Jasco FP-920 flourescence detector and it hooked
up fine to my generic LC software and the hardware looks fine too.
unfortunately, i cannot find a users manual for the instrument. i need
to run the instrument in scan mode in the EX and EM mode to determine

In my lab I use commercial CO2 as oxygen free atmosphere for a couple
of procedures.
Before use cylinder headspaces are purge to remove non CO2 gases. O2
and N2 selectively segregate in headspace of CO2 cylinders above liquid

We are a canadian college offering a program in analytical chemistry.  
We need some Gallenkamp melting point apparatus that are now
discontinued.  If you have model mpd350.bm2.1 or older mf370 that are
120V 60Hz, please send info by email

I m trying method development in hplc for some organic compounds.
Would you help/recommendation  me e.g.useful links,some e-mail
addressis of speciallists etc.
Thank you....

I've read many articles that were against the useage of distilled water
as everyday water supplies for human body.  However, I've read as many
articles that said total different stories.  Those who were against and
those who support were all doctors, Ph Ds...well, is there a final

Let me mention rules which I am referring to:
i. Absorption spectrum is indentical in shape to excitation spectrum
ii. Excitation spectrum and emission spectrum are mirror images.---I am
recalling quinine is an exception among this.

Anyone here have experience with using EDTA titrations
for analysis of calcium and magnesium in tablets?
Having end-point problems...

Hi friends !!
I prepared  CdS nanoparticles capped with 2 -mercaptoethanol    as a
stabilizing agent .I hv some specific doubts concerning use of mass
spectrometry in the analysis of