Samples were extracted following Thayer and Bjorkmann 1990 using 80% cold acetone and were stored in a freezer in HPLC vials. Should I expect degradation of pigments with time?
check out this article;
Article Influences of storage time and temperature on the xanthophyl...
storage period depend on 1- storage condition as temperature (freezing or cooling)
my opnion, 6 month if cooling or one year maximum of freezing.
Instead of checking only the mRNA level, I want to check the active protein level of MMP-1 in Liver tissue from mice. How can I do that?
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