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. 2007 Sep;9(4):452–458. doi: 10.2353/jmoldx.2007.060175

Table 4.

Effect of Long-Term Storage of PAXgene RNA Tubes on RNA Yield and Quality

>2.5 years <5 month All samples
Yield (μg) 4.48 ± 1.42 4.32 ± 1.86 4.40 ± 1.64
RNA integrity number 8.71 ± 0.31 8.74 ± 0.50 8.73 ± 0.41

Twenty-four samples stored for more than 2.5 years at −80°C and 24 samples stored for less than 5 months were randomized and processed in the same batch. The table shows yield and quality of the two groups and corresponding SDs.