. Author manuscript; available in PMC: 2012 Apr 6.

Published in final edited form as: J Am Chem Soc. 2011 Mar 10;133(13):4975–4983. doi: 10.1021/ja110663u

Table 1.

Parameters used to fit equation 1 to the cumulative residence time distribution accounting for four sub-populations

Population	Fused Silica		TMS		PEG(5000)
Population	f_i	τ_i (s)	f_i	τ_i (s)	f_i	τ_i (s)

A	0.73(3)	0.59(5)	0.81(2)	0.65(3)	0.54(2)	1.18(4)
B	0.19(3)	2.6(3)	0.16(2)	2.9(2)	0.31(1)	5.0(3)
C	0.069(7)	10.6(6)	0.028(3)	13(2)	0.104(6)	20.4(9)
D	0.0135(5)	69(2)	0.004(2)	45(8)	0.0437(8)	109(1)