We examined stability of folate in 50 subjects’ dried cord blood spots stored for 9 months at −80 °C, 4 °C, ambient and humid conditions. Mean folate declined progressively, but most subjects were +/− 3 ranks of their −80 °C position. Meaningful information about relative concentrations was retained across conditions.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3725212 | PMC |
| http://dx.doi.org/10.1016/j.jpeds.2013.03.043 | DOI Listing |
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