FIG. 5.

Stability study of AR–HIV-B spiked into EDTA-anticoagulated human plasma at 4°C. AR–HIV-B was added to clarified plasma to a final concentration of ∼7,500 copies/ml. Samples were incubated at 4°C for 0, 1, 2, 4, 7, 14, 28, 42, and 60 days. Samples from each time point were assayed in duplicate, and the copy number determinations were averaged. The mean for all of the samples was 7,780 copies per ml (3.8 log₁₀; range, 6,530 to 9,020 copies per ml [range, 3.81 to 3.96 log₁₀]), and the coefficient of variation was 10.7%. The dashed line represents the mean.