3. Pnt sqrt(Mw) Mw 5411 1 H+ 2928.88819 79 79Br+ 2959 81 81Br+ 3119.69536 94 CH379Br+ 3159.79796 96 CH381Br+ pnt Sqrt(Mw) Coefficient values ± one standard deviation a = 24.618 ± 2.9 b = 29.804 ± 0.346 i.e. Pnt = 29.804 sqrt(Mw) + 24.618

4. Coefficient values ± one standard deviation a = 24.618 ± 2.9 b = 29.804 ± 0.346 i.e. Pnt = 29.804 sqrt(Mw) + 24.618 Pnt(CH3+) = 29.804 sqrt(15) + 24.618 140

5. H + pnt = 54 79 Br + pnt = 292 81 Br + pnt = 295 CH 3 81 Br + Pnt = 315 CH 3 79 Br + pnt = 311 CH 3 + pnt = 140 pnt