Problems with DNA contamination in RNA samples

[Robert Scheubel]

Hello,

I found a pair of primers that are intron-spanning of beta-actin.The
intention was to see any DNA contamination if there is some.The
product-size of the genomic DNA is about 110 bp greater than cDNA.So it
is possible to detect any genomic DNA in the sample,That was the origin
idea,but did not work with this pair of primers.So my question
is,whether anybody tried this way before and has a pair of primers which
do good work and would be so kind to send me a response.

Best wishes

Christian