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anion

Posted: Fri Jan 12, 2007 8:31 pm
by mmegliol
Hello eveybody, i have to find a method for the determination of SO4 and Cl in fruit juice....anyone have the method or any tips and advise

Thanks a lot.

Posted: Fri Jan 12, 2007 9:13 pm
by rhaefe
just curious: did you actually try to do an online search? I used Google and was quite successful...

cheers

Posted: Fri Jan 12, 2007 9:53 pm
by Mark Tracy
You might want to take a look at http://www1.dionex.com/en-us/webdocs/4094_AN143_V19.pdf
to see how we do it.

Posted: Tue Jan 16, 2007 6:48 am
by Markus Laeubli, Metrohm
Depending on the type of fruit juice sample preparation might become important.
Inline Dialysis often is the solution.
Application Note S-164 shows anions in orange juice (login required, free registration).

Posted: Wed Jan 24, 2007 3:27 pm
by johnshall
Stay away from the Metrohm method. It is so prone to problems and cross contamination that you're life will be a misery.

Posted: Thu Jan 25, 2007 8:07 am
by Markus Laeubli, Metrohm
Stay away from the Metrohm method. It is so prone to problems and cross contamination that you're life will be a misery.
I am pretty surprised to hear that. As our feedback is quite different.
I would be more than happy to discuss the problems you found with you.

You may reach me under lae@metrohm.ch.

Posted: Thu Jan 25, 2007 8:14 am
by gcguy
I use Metrohm kit and their standard methods with no problems. As with most things it comes down to how good your sample preparation is.

GCguy

Posted: Thu Jan 25, 2007 11:54 am
by HW Mueller
Too bad so many discussions go private when they just promise to become quite interesting.

Posted: Fri Jan 26, 2007 2:57 pm
by Markus Laeubli, Metrohm
Too bad so many discussions go private when they just promise to become quite interesting.
No problem with an open discussion.