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Dear all,

I have water samples (regular, run of the mill dilute river water)
that I plan to analyze for alkali and alkali earth metals using ICP-
OES. Some of these samples are in 1%% HCl matrix, which may cause
corrosion to the equipment and, for all I know, cause interferences.
Would I be better off adding concentrated HNO3 to my samples that are
currently in 1%% HCl or just leaving them as are? I'm hoping that
adding the nitric acid will convert the Cl- to Cl2(g) but I'm not sure
if that will actually happen. My concerns are mainly about
interferences and possible matrix effect of the HCl, but also about
corrosion since I'll be running a lot of samples. Any insight or
advice is warmly appreciated.

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Custom Organic Synthesis

Hallo we are PhD students group from Medical university of
Kaunas( Pharmacy Faculty). We do custom organic synthesis of
biological active compounds ( heterocyclic, heterocyclic-fused
systems, custom peptide synthesis). If you need any compound, please
let as know.
Email: liudwiks@gmail.com
Kind regards,Ludwig

On 7 set, 06:52, hellur...@gmail.com wrote:

In article d1g2000hsg.googlegroups.com>, vidalteixeira@terra.com.br wrote:

[crap deleted]

So you quote pages and pages of crap to ask a question? How about an e-mail
response to the spammer? Killfiles can only do so much.

I need solution for advanced engineering thermodynamics

solution manual for Engineerin economy 6th edition by l blank plz help

hello,

I m beginner on operating HPLC.I m viewing a major difference b/w
pressure on same flow rate of water and Acetonitrile.

Column = Zorbax SB-C3 250 X 4.6 mm 5um

Gradient Flow rate Pressure
Acetonitrile 1 ml/min 60 bar
Water 1 ml/min 250 bar

Is that normal.
Whats the region,i don't understand.

On Aug 5, 12:29 pm, hellur...@gmail.com wrote: