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Zeenat Tinwala

Member Since 09 Sep 2012
Offline Last Active Sep 11 2012 06:26 AM
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Posts I've Made

In Topic: Lost of Reproducibility

10 September 2012 - 08:34 PM

I am not analyzing protein but using Postaglandin 2. Since I was getting this problem I called up the supplier and they told me that the solvent I dissolved the PGE2 in (acetonitrile) might have caused them to degrade because of change in pH.
But I m still confused as if the sample has degraded the degraded substance should have show a peak in the chromatogram which was not seen.

In Topic: Lost of Reproducibility

09 September 2012 - 09:14 PM

There is nothing that I have mixed with the sample. The sample is in the vial as made and I had stored the sample in -20C

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