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DNA extraction using TRIzol

DNA extraction using TRIzol - DNA Extraction Forum

DNA extraction using TRIzol - DNA Isolation Forum. A forum specifically about questions on DNA extraction and purification.


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Old 03-09-2012, 02:01 AM
Pipette Filler
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Default DNA extraction using TRIzol



Hi,
I am using Trizol for extracting genomic DNA from cerebrospinal fluids. I am expecting between 2-5 ng genomic DNA from my sample but in PCR there is no amplification. I have tried several different changes in trizol extraction protocol to get a better yield but nanodrop is not sensitive enough and PCR shows no amplification. I have around 500 human samples lysed in TRIZOL waiting to be extracted but I have failed to optimize the extraction yet.
My questions are:
1. Does Trizol eluted DNA contain any PCR inhibitors? If yes, then how to clean the eluted DNA (I have around 100 samples already extracted)
2. Can I apply the TRIZOL organic phase directly on to a DNA column (DNA micro kit)?
Will be grateful for any tips.
Yasar
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Old 11-15-2012, 11:25 PM
Pipette Filler
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Default Re: DNA extraction using TRIzol

Hello,

I am extracting DNA from pelleted CSF cells lysed inTRizol. How many samples have you done so far? What are your average yields? Did you resuspend your DNA in 8mM NaOH as recommended by Invitrogen/Life Sciences? I can't seem to find anyone else who has experience extracting DNA from CSF cells.

Thanks!

--Christine
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dna , dna extraction , dna micro kit , extraction , nanodrop , trizol


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