Prepared concentration (ng/mL)
Period after preparation (week, -80 oC) 0 1 2
freeze-resolution 2 times
2
2.0
2.2
2.3
2.0
40
40.0
41.4
41.0
40.0
Data is the average of 3 samples
Table 4:
Stability of ameziniummetilsulfate (AM) in human blood plasma.