Duration Absorption   Ions
21.7    7.2 R
46.0    11.4    R
67.0    14.2    R
90.2    19.1    R
95.5    20.0    R
21.7    0.7   B
46.0    6.4   B
67.0    9.9   B
90.2    12.8  B
95.5    15.8  B