Table 2. Stability of the GLA and QS-21 Content in the Conjugates Stored at 4 °C for 2 Months.

parameters	GA (μg/mL)	EDC (μg/mL)
GLA contenta
day 0	36.8 ± 0.9	35.8 ± 1.1
0.5 months	35.1 ± 0.1	31.6 ± 0.6
1 month	33.2 ± 1.0	30.5 ± 1.2
2 months	32.5 ± 0.1	30.1 ± 1.2
QS-21a
day 0	30.9 ± 3.1	29.0 ± 0.8
0.5 months	30.9 ± 1.2	28 .0 ± 1.8
1 month	31.1 ± 1.7	28.5 ± 2.2
2 months	29.9 ± 1.2	27.8 ± 1.9

^aThe data from the HPLC-ELSD determinations for the GLA and QS21 content in the formulations.