Natural Science Forum / Chemistry / Analytical Chemistry / August 2006

Does anyone have some printed methods for doing these analyses on final
effluent samples?
please email me if you have anything I can go by.

Does anyone know what an AIC error message is whil trying to run a
Perkin Elmer AA furnace analysis. I'm able to do the furnace cleanout
but then it locks up an I get this error message. As usual the HELP
menu is no help at all. Someone should make a book up of error message

need to recognize known impurities in essential oils at high levels.
all components b.p. 200-250. no halogens. need only one column, manual
sample, low sensitivity on detector required. it seems that the
injector port has to be heated and the column and detector are run over

I bought model 2006MP and would like to know if it is possible to get the
manual or some calibration instructions.
At the moment when turned on all digits light up as usual but then
everything disappears from the display. I'm not sure if this is a fault or

Anyone know any more about non-contact friction?  Apparently it's like
"AC Vanderwaals force" for atoms having sharp resonance bands:
 http://www.google.com/search?q=%22non-contact+friction%22
I'm wondering: should non-contact friction only exist for atoms

can anybody helpme  to find out the mixture proportion for getting
ferrotitanium from rutile/ilmenite ? what would be the material for
crucible for the aluminothermic reaction for the process? can we make
the FeTi to 70% or higher?

May I ask a question?
I understand that chirality is a property common among fragrances.
If this is true (please correct me if I am wrong)...
Is there a reason for this?

I need some independent inputs concerning the quality of this companies
in terms of preparative pumps like Smart line 1000 and PU-2087 in terms
of quality of the gradient and others like fiability and robustness.

I have a sample containing various organics including chloroform. I
would like to measure the total organic content (TOC or COD) of the
non-volatile portion by first sparging the solution with
hydrocarbon-free air. Just wondering how long the air sparging should be