This would depend on what substances you are preserving the urinary sample for, or what downstream procedures/analysis you have planned for the specimens.
This would depend on what substances you are preserving the urinary sample for, or what downstream procedures/analysis you have planned for the specimens.
Depends on how long you need to store the samples for/what you're assaying I guess, but we typically collect urine, snap-freeze and store in -80. As the others have said, they are quite stable for some time.
Hay Nadia you would have some good contacts there at US so kindly can you ask for me somebody about preserving this Urine for the extraction of the DNA for lab study, as your analysis is different but I would have to extract DNA from it so kindly help me out in this regard