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Determination of borax

http://www.chromforum.org/viewtopic.php?t=17999

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Determination of borax

Posted: Wed Oct 19, 2011 4:58 pm
by frasmx
Hi, I'm interested in developing a method for the determination of borax (sodium tetraborate), either by HPLC or GC, but information is scarce, anyone know if possible?

Re: Determination of borax

Posted: Wed Oct 19, 2011 6:49 pm
by sepscientologist
Borate is sometimes used as a high pH buffer such as OPA derivatizations. An an analyte I think you would have to go to ion chromatography.

Re: Determination of borax

Posted: Fri Oct 21, 2011 7:24 pm
by Consumer Products Guy
What level, and in what type of matrix?

One way is titration after adding mannitol.

Re: Determination of borax

Posted: Mon Oct 24, 2011 6:22 am
by Bintang
Ion chromatography would be the obvious way but I am sure HILIC would also work with ELSD
We have this application for a range of other ions but Borax should also work.
http://www.sequant.com/files/documents/ ... ations.pdf
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