I suggest that you try tetrahydrofuran as a solvent for your reverse phase separation. You have to make sure that your sample is miscible with the mobile phase...
i just joined your club hoping that i learn alot. i am not very good in chemistry but i find it intriguing so if you all don't mind me a bum just hanging out...
Are there any other ocean surfing chemists out there, if so then come and join my club at<br><a href=http://clubs.yahoo.com/clubs/thesurfingchemistsclub...
I trying to do a cloud point extraction on pyrethrins for a CEC analysis but so far the surfactant (tx-114) mixture is not producing any readable results any...
One mole of thiosulfate ion reacts with one mole of hydronium ion to give one mole of sulfur, one mole of bisulfite ion and one mole of water. Do you know the...
I have to go to a meeting right now, but I do want to help. What do you need to know: 1) calculate the pH of a particular buffer system; 2) calculate the new...
Good morning/afternoon:<br><br>Columbia Analytical Services, Inc., an employee-owned, environmental testing laboratory, currently seeks qualified analytical ...
Any 6890 experts out there? I am a new user with a problem. I am setting up a capillary column (5% PhMeSi) on a system with split/splitless injection and I ...
You are right. The rate determining step (RDS) is the slowest step in the mechanism of the reaction. One way of determining the RDS is to look at the change of...
Any chance we could get a conversation started on a chemistry topic...<br><br>Here is one ... in several of my recent teaching experiences, I have noticed a...
Columbia Analytical Services, Inc., an employee-owned environmental testing laboratory, is seeking to fill scientific and/or information technology positions...
Hello everbody, I need to know some data about hardness of water of different regions around the world...could you help me? do you have any data about ...
Very Easy, The hardness of water can be tested with the EDTA at an amoniacak pH=10. Hardness comes from Caclium and Magnesium Ox II ions soluble in water, so...
If you want to use the optical method, you should wirk on the Machine Right absorbtion area, so you have to draw both the Spectre to chose the proper wave ...
In Lebanon rivers water has a hardnes detween 682MicroSimens and 1440Microsimens. This diffrence is due from the diffrence of the ground structure and the ...
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