Natural Science Forum / Chemistry / Analytical Chemistry / February 2005

First excuse me for my bad english :-) "An aqueous solution of FeCl3 is
saturated with a mix of O2 and CO. Describe the interaction between the
gases in solution and the complex that forms". I think Fe(3+) forms a
complex with CO but I cannot explain why and I've no idea about the

Never even heard of this field till today, and would like a dummies guide
(or the likes).  Any suggestions?
Thanks.
Robert

Help ! ( hello to everyone ) :
I know how to measure the concentration of
a ion in a water sample, just by taking
some ml from the sample. I don't know what

Can anyone advise me on the choice of a method for hydrogen peroxide
measurement in fermentation broth. I have tried thiocyanate and iodide
methods. Medium components interfere with the color heavily. Absorbance
measurement at 240 nm also was not effective. I am looking for some

Does anyone work with shimadzu TOC V-series?
The lab where I work has planned to buy it but I have some doubts.
Is it affordable and valuable as the vendor says?
thanks in advance

Can anyone out there tell me that ca I use melamine plastics in the
work of trace metal determination? I knew that  melamine plastics are
very heat resistant and they are used a lot for dinnerware but I do not
know can they absorb heavy metals?

Hi Netters!
I need help to estimate the concentration of Sulfurous acid.Thankyou.

I'm a hunter and I need RDX to blow up some very fierce rabbits and
squirrels who really do annoy me!
What do I need to create such explosives and how can I blow up the
mean rabbits and squirrels ?

Hi
I am using MAbTrap Kit with HiTrap Protein G HP 1 ml column(Amersham),
to purify a recombinant human antibody (IgG1). This antibody is
expressed in adherent CHO cells. I am using DMEM with 5% SYNSER. I am

I've got a couple question from a chemistry lab I was wondering if
someone could help me with.
1. Using fermentation why is it impossible to get a solution with an
ethanol concentration of greater than 10-15 % without distillation?

What is a convenient method for analysis of Al in a solution
with pH ca. 7?

I am looking for information about How to Calculate Equivalent Weight
of Acid Salt ( KH2PO4 or K2HPO4)...
Thanks in advance for any information
Ruben Cortez